Performance information

• An Extended Mixed Quantum/Classical Approach for Quantitative Calculation of Complex Refractive Index　　　　　　　　　　　　　　　
  Ian F. Mochida; Tetsuyuki Takayama; Shoichi Yamaguchi; Tetsuya Hama
  JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume：16, Number：50, First page：12741, Last page：12751, Dec. 2025, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpclett.5c02887
  DOI ID：10.1021/acs.jpclett.5c02887, ISSN：1948-7185, Web of Science ID：WOS:001635326600001
• Application of a supported lipid bilayer for the leaflet-resolved analysis　　　　　　　　　　　　　　　
  Takuhiro Otosu; Shoichi Yamaguchi
  Advances in Biomembranes and Lipid Self-Assembly, Volume：42, First page：1, Last page：23, Nov. 2025, [Reviewed], [Invited], [Last]
  Elsevier, English, Scientific journal
  DOI：https://doi.org/10.1016/bs.abl.2025.07.005
  DOI ID：10.1016/bs.abl.2025.07.005, ISSN：2451-9634
• Comment on “On the Fresnel factor correction of sum-frequency generation spectra of interfacial water” [J. Chem. Phys. 158, 044701 (2023)]　　　　　　　　　　　　　　　
  Shoichi Yamaguchi
  JOURNAL OF CHEMICAL PHYSICS, Volume：163, Number：16, First page：167101, Oct. 2025, [Reviewed], [Lead, Last, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1063/5.0270272
  DOI ID：10.1063/5.0270272, ISSN：0021-9606, eISSN：1089-7690, Web of Science ID：WOS:001600795600002
• A simulation study on Raman cross sections of OH and OD stretches in isotopically pure and diluted liquid water　　　　　　　　　　　　　　　
  Tetsuyuki Takayama; Takuhiro Otosu; Shoichi Yamaguchi
  JOURNAL OF CHEMICAL PHYSICS, Volume：162, Number：24, First page：244502, Jun. 2025, [Reviewed], [Last, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1063/5.0276271
  DOI ID：10.1063/5.0276271, ISSN：0021-9606, eISSN：1089-7690, Web of Science ID：WOS:001517481500010
• 水表面の和周波発生分光の実験と計算　　　　　　　　　　　　　　　
  山口祥一
  Volume：10, Number：3, Mar. 2025, [Reviewed], [Invited], [Lead, Last, Corresponding]
  Scientific journal
• A macroscopically homogeneous lipid phase exhibits leaflet-specific lipid diffusion in a glass-supported lipid bilayer
  Takuhiro Otosu; Miyuki Sakaguchi; Shoichi Yamaguchi
  Physical Chemistry Chemical Physics, Volume：27, Number：9, First page：4944, Last page：4949, Mar. 2025, [Reviewed]
  Leaflet-specific lipid diffusion analysis revealed that the strength of interleaflet coupling is sensitive to the lipid composition even in the region where macroscopically homogeneous phase is observed.
  Royal Society of Chemistry (RSC), Scientific journal
  DOI：https://doi.org/10.1039/d5cp00203f
  DOI ID：10.1039/d5cp00203f, ISSN：1463-9076, eISSN：1463-9084
• A new rigid non-polarizable model for semi-heavy water: TIP4P/2005-SHW
  Tetsuyuki Takayama; Takuhiro Otosu; Shoichi Yamaguchi
  The Journal of Chemical Physics, Volume：161, Number：23, First page：234501, Dec. 2024, [Reviewed], [Invited], [Last, Corresponding]
  In molecular dynamics (MD) simulations of water, rigid non-polarizable models are still valuable and widely used because of their low computational cost and excellent performance. Most of such models have been for light water (H2O) for a long time, and a few have recently been reported for heavy water (D2O). The specific models of D2O are needed because of its notably slower dynamics and stronger hydrogen bond than H2O. To our knowledge, no models of semi-heavy water (HOD) were made, although HOD is the most abundant and, therefore, most important chemical species in isotopically diluted water (IDW) prepared by mixing equal amounts of H2O and D2O. For precise MD simulations of IDW, a specific model of HOD is definitely needed. Here, we report the development of a new rigid non-polarizable model of HOD, TIP4P/2005-SHW, on the basis of the most popular H2O model, TIP4P/2005, and its D2O counterpart, TIP4P/2005-HW. We show the details of the development and demonstrate the high reproducibility of TIP4P/2005-SHW in terms of the density, the temperature of maximum density, the viscosity, and the diffusion coefficient.
  AIP Publishing, English, Scientific journal
  DOI：https://doi.org/10.1063/5.0240271
  DOI ID：10.1063/5.0240271, ISSN：0021-9606, eISSN：1089-7690
• Diffusion of Multiple Species Resolved by Fluorescence Lifetime Recovery after Photobleaching (FLRAP)
  Ikumi Mori; Shun Terasaka; Shoichi Yamaguchi; Takuhiro Otosu
  Analytical Chemistry, Volume：96, Number：12, First page：4854, Last page：4859, Apr. 2024, [Reviewed]
  American Chemical Society (ACS), Scientific journal
  DOI：https://doi.org/10.1021/acs.analchem.3c05181
  DOI ID：10.1021/acs.analchem.3c05181, ISSN：0003-2700, eISSN：1520-6882
• Theoretical and experimental OD-stretch vibrational spectroscopy of heavy water
  Tetsuyuki Takayama; Takuhiro Otosu; Shoichi Yamaguchi
  The Journal of Chemical Physics, Volume：160, Number：10, First page：104504, Apr. 2024, [Reviewed], [Invited], [Last, Corresponding]
  In view of the current situation in which the OD-stretch vibrational spectra have been scarcely computed with non-polarizable rigid D2O models, we investigate the IR and Raman spectra of D2O by using a newly-reported model TIP4P/2005-HW. From the comparison between the calculations and experimental data, we find the excellent performance of TIP4P/2005-HW for vibrational spectroscopy of D2O in the same manner as TIP4P/2005 for H2O, although one may still conveniently employ an alternative method that regards OH as putative OD to calculate the OD-stretch spectra with similar quality from TIP4P/2005 trajectories. We also demonstrate that the appropriate setting for the spectral simulation of D2O under the time-averaging approximation reflects the slower dynamics (i.e., slower motion of translation and rotation due to the heavier mass and stronger hydrogen bond) of D2O than H2O. Moreover, we show from the theoretical calculations that the established interpretation of the OH-stretch spectra of H2O is finely applicable to the OD-stretch of D2O.
  AIP Publishing, English, Scientific journal
  DOI：https://doi.org/10.1063/5.0200623
  DOI ID：10.1063/5.0200623, ISSN：0021-9606, eISSN：1089-7690
• 振動分光の実験と理論計算による結晶氷の分子構造研究　　　　　　　　　　　　　　　
  高山哲侑; 山口祥一
  Volume：51, First page：1, Last page：10, Apr. 2024, [Reviewed], [Invited], [Last, Corresponding]
  Japanese, Scientific journal
• Peripheral adsorption of polylysine on one leaflet of a lipid bilayer reduces the lipid diffusion of both leaflets
  Kosei Shimizu; Miyuki Sakaguchi; Shoichi Yamaguchi; Takuhiro Otosu
  Physical Chemistry Chemical Physics, Volume：26, Number：11, First page：8873, Last page：8878, Apr. 2024, [Reviewed]
  Leaflet-specific lipid diffusion analysis revealed that polylysine adsorption on one leaflet of a lipid bilayer is sensed by the opposite leaflet.
  Royal Society of Chemistry (RSC), Scientific journal
  DOI：https://doi.org/10.1039/d3cp04882a
  DOI ID：10.1039/d3cp04882a, ISSN：1463-9076, eISSN：1463-9084
• Complex phase of the nonresonant background in sum frequency generation spectroscopy
  Korenobu Matsuzaki; Shoichi Yamaguchi; Tahei Tahara
  The Journal of Chemical Physics, Volume：159, Number：22, First page：224708, Dec. 2023, [Reviewed]
  Sum frequency generation (SFG) spectroscopy is an interface-selective spectroscopic technique that enables us to selectively observe the vibrational or electronic resonances of molecules within a very thin interface layer. The interfacial properties probed by SFG are contained in a complex quantity called the second-order nonlinear susceptibility (χ2). It is usually believed that the imaginary part of χ2 (Im χ2) exhibits the resonant responses of the system, whereas the nonresonant responses appear solely in the real part of χ2 (Re χ2). However, it was recently theoretically pointed out that a portion of the nonresonant responses actually contributes to the observed Im χ2 spectra when the finite thickness of the interface layer is taken into account. In this study, by considering a simple air/liquid interface without any solutes as a model system, we theoretically evaluate the nonresonant contribution to experimentally accessible Im χ2 as well as to Re χ2, from which the complex phase of the nonresonant background is estimated. It is shown that the deviation of the complex phase from 0° or 180° is less than 1° even if the thickness of the interface layer is taken into account. This means that the nonresonant contribution to Im χ2 is practically negligible, and it is a very good approximation to think that the nonresonant background appears solely in Re χ2 in the case of air/liquid interfaces. This result implies that Im χ2 practically contains only the resonant responses of the system, and molecular resonances at the interface can be conveniently studied using Im χ2 spectra at such interfaces.
  AIP Publishing, English, Scientific journal
  DOI：https://doi.org/10.1063/5.0169712
  DOI ID：10.1063/5.0169712, ISSN：0021-9606, eISSN：1089-7690
• Appraisal of TIP4P-type models at water surface
  Shoichi Yamaguchi; Tetsuyuki Takayama; Takuhiro Otosu
  The Journal of Chemical Physics, Volume：159, Number：17, First page：171101, Nov. 2023, [Reviewed], [Lead, Corresponding]
  In view of the current situation in which non-polarizable rigid water models have been scarcely examined against surface-specific properties, we appraise TIP4P-type models at the liquid water surface on the basis of heterodyne-detected sum frequency generation (HD-SFG) spectroscopy. We find in the HD-SFG spectrum of the water surface that the peak frequency of the hydrogen-bonded OH band, the half width at half maximum of the hydrogen-bonded OH band, and the full width at half maximum of the free OH band are best reproduced by TIP4P, TIP4P/Ew, and TIP4P/Ice, respectively, whereas it is already well known that TIP4P/2005 best reproduces the surface tension. These TIP4P-type models perform better at the water surface in terms of the present appraisal items than some polarizable models in the literature.
  AIP Publishing, English, Scientific journal
  DOI：https://doi.org/10.1063/5.0171999
  DOI ID：10.1063/5.0171999, ISSN：0021-9606, eISSN：1089-7690
• Transferability of vibrational spectroscopic map from TIP4P to TIP4P-like water models
  Tetsuyuki Takayama; Takuhiro Otosu; Shoichi Yamaguchi
  The Journal of Chemical Physics, Volume：158, Number：13, First page：136101, Apr. 2023, [Reviewed], [Last, Corresponding]
  We computed the IR, Raman, and sum frequency generation spectra of water in the OH-stretch region by employing the quantum/classical mixed approach that consists of a vibrational spectroscopic map and molecular dynamics (MD) simulation. We carried out the MD simulation with the TIP4P, TIP4P/2005, and TIP4P/Ice models and applied the map designed for TIP4P by Skinner et al. to each MD trajectory. Although the map is not tuned for TIP4P-like models, TIP4P/2005 and TIP4P/Ice provide the best reproduction of the experimental vibrational spectra of liquid water and crystalline ice, respectively. This result demonstrates the transferability of the map from TIP4P to TIP4P/2005 and TIP4P/Ice, meaning that one can choose an appropriate TIP4P-like model to calculate the vibrational spectra of an aqueous system without rebuilding the map.
  AIP Publishing, English, Scientific journal
  DOI：https://doi.org/10.1063/5.0146084
  DOI ID：10.1063/5.0146084, ISSN：0021-9606, eISSN：1089-7690
• Experimental and Theoretical Heterodyne-Detected Sum Frequency Generation Spectroscopy of Isotopically Pure and Diluted Water Surfaces　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Tetsuyuki Takayama; Yuki Goto; Takuhiro Otosu; Takuma Yagasaki
  The Journal of Physical Chemistry Letters, Volume：13, First page：9649, Last page：9653, Oct. 2022, [Reviewed], [Lead, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpclett.2c02533
  DOI ID：10.1021/acs.jpclett.2c02533, ORCID：120487669
• Experimental and Theoretical Raman Spectroscopy of Isotopically Pure and Diluted Ice VI　　　　　　　　　　　　　　　
  Tetsuyuki Takayama; Kota Kishi; Takuhiro Otosu; Takuma Yagasaki; Shoichi Yamaguchi
  The Journal of Physical Chemistry C, Volume：126, First page：17359, Last page：17365, Oct. 2022, [Reviewed], [Invited], [Last, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpcc.2c05133
  DOI ID：10.1021/acs.jpcc.2c05133, ORCID：120088265
• Editorial on the special issue of JRS on vibrational spectroscopy of water
  Shoichi Yamaguchi; Roumiana Tsenkova; Hiro‐o Hamaguchi
  Journal of Raman Spectroscopy, Volume：53, Number：10, First page：1654, Last page：1655, Oct. 2022, [Invited], [Lead]
  Wiley, English, Scientific journal
  DOI：https://doi.org/10.1002/jrs.6451
  DOI ID：10.1002/jrs.6451, ISSN：0377-0486, eISSN：1097-4555
• Raman spectroscopy of isotopically pure and diluted high‐ and low‐density amorphous ices
  Senri Ishihara; Tetsuyuki Takayama; Miyuki Sakaguchi; Takuhiro Otosu; Takuma Yagasaki; Yoshiharu Suzuki; Shoichi Yamaguchi
  Journal of Raman Spectroscopy, Volume：53, First page：1773, Last page：1784, Feb. 2022, [Reviewed], [Invited], [Last, Corresponding]
  Wiley, English, Scientific journal
  DOI：https://doi.org/10.1002/jrs.6322
  DOI ID：10.1002/jrs.6322, ISSN：0377-0486, eISSN：1097-4555
• DNA-Induced Reorganization of Water at Model Membrane Interfaces Investigated by Heterodyne-Detected Vibrational Sum Frequency Generation Spectroscopy　　　　　　　　　　　　　　　
  Prashant Chandra Singh; Mohammed Ahmed; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY B, Volume：126, Number：4, First page：840, Last page：846, Feb. 2022, [Reviewed], [Invited]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpcb.1c08581
  DOI ID：10.1021/acs.jpcb.1c08581, ISSN：1520-6106, eISSN：1520-5207, Web of Science ID：WOS:000746682000001
• Heterodyne-Detected Sum Frequency Generation Spectroscopic Study of Weakly Hydrogen-Bonded Water at Charged Lipid Interfaces, Revisited
  Yuki Nojima; Shoichi Yamaguchi
  The Journal of Physical Chemistry C, Volume：125, Number：42, First page：23483, Last page：23489, Oct. 2021, [Reviewed], [Invited], [Last, Corresponding]
  American Chemical Society (ACS), English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpcc.1c07173
  DOI ID：10.1021/acs.jpcc.1c07173, ISSN：1932-7447, eISSN：1932-7455
• Progress in phase-sensitive sum frequency generation spectroscopy
  Shoichi Yamaguchi; Takuhiro Otosu
  Physical Chemistry Chemical Physics, Volume：23, Number：34, First page：18253, Last page：18267, 2021, [Reviewed], [Invited], [Lead, Corresponding]
  Representative methods of surface-selective phase-sensitive sum frequency generation spectroscopy are reviewed in terms of interferometer implementation for optical heterodyne detection.
  Royal Society of Chemistry (RSC), English, Scientific journal
  DOI：https://doi.org/10.1039/d1cp01994e
  DOI ID：10.1039/d1cp01994e, ISSN：1463-9076, eISSN：1463-9084
• Leaflet-specific Lipid Diffusion Revealed by Fluorescence Lifetime Correlation Analyses　　　　　　　　　　　　　　　
  Takuhiro Otosu; Shoichi Yamaguchi
  CHEMISTRY LETTERS, Volume：49, Number：12, First page：1473, Last page：1480, Dec. 2020
  English
  DOI：https://doi.org/10.1246/cl.200539
  DOI ID：10.1246/cl.200539, ISSN：0366-7022, eISSN：1348-0715, Web of Science ID：WOS:000598377200011
• Resolving the Controversy over Dipole versus Quadrupole Mechanism of Bend Vibration of Water in Vibrational Sum Frequency Generation Spectra　　　　　　　　　　　　　　　
  Mohammed Ahmed; Satoshi Nihonyanagi; Achintya Kundu; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume：11, Number：21, First page：9123, Last page：9130, Nov. 2020, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpclett.0c02644
  DOI ID：10.1021/acs.jpclett.0c02644, ISSN：1948-7185, Web of Science ID：WOS:000589920000029
• Structure of water and polymer at the buried polymer/water interface unveiled using heterodyne-detected vibrational sum frequency generation　　　　　　　　　　　　　　　
  Anton Myalitsin; Sanat Ghosh; Shu-hei Urashima; Satoshi Nihonyanagi; Shoichi Yamaguchi; Takashi Aoki; Tahei Tahara
  PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Volume：22, Number：29, First page：16527, Last page：16531, Aug. 2020, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/d0cp02618b
  DOI ID：10.1039/d0cp02618b, ISSN：1463-9076, eISSN：1463-9084, Web of Science ID：WOS:000556485900003
• Comment on "Phase-sensitive sum frequency vibrational spectroscopic study of air/water interfaces: H2O, D2O, and diluted isotopic mixtures" [J. Chem. Phys. 150, 144701 (2019)]　　　　　　　　　　　　　　　
  Mohammed Ahmed; Yuki Nojima; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：152, Number：23, Jun. 2020
  English
  DOI：https://doi.org/10.1063/1.5126062
  DOI ID：10.1063/1.5126062, ISSN：0021-9606, eISSN：1089-7690, Web of Science ID：WOS:000542728800001
• Hydrogen order at the surface of ice Ih revealed by vibrational spectroscopy　　　　　　　　　　　　　　　
  Yuki Nojima; Yuki Shioya; Hajime Torii; Shoichi Yamaguchi
  Chem. Commun., Volume：56, Number：33, First page：4563, Last page：4566, Mar. 2020, [Reviewed], [Last, Corresponding]
  English, Scientific journal
• Effect of electrostatic interaction on the leaflet-specific diffusion in a supported lipid bilayer revealed by fluorescence lifetime correlation analysis　　　　　　　　　　　　　　　
  Takuhiro Otosu; Shoichi Yamaguchi
  PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Volume：22, Number：3, First page：1242, Last page：1249, Jan. 2020, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/c9cp05833h
  DOI ID：10.1039/c9cp05833h, ISSN：1463-9076, eISSN：1463-9084, Web of Science ID：WOS:000509371400030
• Quadrupolar mechanism for vibrational sum frequency generation at air/liquid interfaces: Theory and experiment
  Korenobu Matsuzaki; Satoshi Nihonyanagi; Shoichi Yamaguchi; Takashi Nagata; Tahei Tahara
  The Journal of Chemical Physics, Volume：151, Number：6, First page：064701, Last page：064701, Aug. 2019, [Reviewed]
  AIP Publishing, Scientific journal
  DOI：https://doi.org/10.1063/1.5088192
  DOI ID：10.1063/1.5088192, ISSN：0021-9606, eISSN：1089-7690
• Reduction of glass-surface charge density slows the lipid diffusion in the proximal leaflet of a supported lipid bilayer　　　　　　　　　　　　　　　
  Takuhiro Otosu; Shoichi Yamaguchi
  JOURNAL OF CHEMICAL PHYSICS, Volume：151, Number：2, First page：025102, Jul. 2019, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.5103221
  DOI ID：10.1063/1.5103221, ISSN：0021-9606, eISSN：1089-7690, Web of Science ID：WOS:000486055700034
• Perspective on sum frequency generation spectroscopy of ice surfaces and interfaces　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Yudai Suzuki; Yuki Nojima; Takuhiro Otosu
  CHEMICAL PHYSICS, Volume：522, First page：199, Last page：210, Jun. 2019, [Reviewed], [Invited], [Lead, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.chemphys.2019.03.005
  DOI ID：10.1016/j.chemphys.2019.03.005, ISSN：0301-0104, eISSN：1873-4421, Web of Science ID：WOS:000466713000027
• Quantifying the Diffusion of Lipids in the Proximal/Distal Leaflets of a Supported Lipid Bilayer by Two-Dimensional Fluorescence Lifetime Correlation Spectroscopy　　　　　　　　　　　　　　　
  Takuhiro Otosu; Shoichi Yamaguchi
  JOURNAL OF PHYSICAL CHEMISTRY B, Volume：122, Number：45, First page：10315, Last page：10319, Nov. 2018, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpcb.8b08614
  DOI ID：10.1021/acs.jpcb.8b08614, ISSN：1520-6106, Web of Science ID：WOS:000451101100006
• Two-Dimensional Fluorescence Lifetime Correlation Spectroscopy: Concepts and Applications　　　　　　　　　　　　　　　
  Takuhiro Otosu; Shoichi Yamaguchi
  MOLECULES, Volume：23, Number：11, Nov. 2018
  English
  DOI：https://doi.org/10.3390/molecules23112972
  DOI ID：10.3390/molecules23112972, eISSN：1420-3049, Web of Science ID：WOS:000451641900244
• Total Internal Reflection Two-Dimensional Fluorescence Lifetime Correlation Spectroscopy　　　　　　　　　　　　　　　
  Takuhiro Otosu; Shoichi Yamaguchi
  Journal of Physical Chemistry B, Volume：122, Number：22, First page：5758, Last page：5764, Jun. 2018, [Reviewed]
  American Chemical Society, English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpcb.8b01176
  DOI ID：10.1021/acs.jpcb.8b01176, ISSN：1520-5207, SCOPUS ID：85048247541
• Local pH at the surface of hen egg white lysozyme　　　　　　　　　　　　　　　
  Takuhiro Otosu; Kaito Kobayashi; Shoichi Yamaguchi
  Chemical Physics Letters, Volume：693, First page：165, Last page：169, Feb. 2018, [Reviewed]
  Elsevier B.V., English, Scientific journal
  DOI：https://doi.org/10.1016/j.cplett.2018.01.026
  DOI ID：10.1016/j.cplett.2018.01.026, ISSN：0009-2614, SCOPUS ID：85040701289
• Two-Photon Infrared Resonance Can Enhance Coherent Raman Scattering　　　　　　　　　　　　　　　
  Traverso; Andrew J.; Hokr, Bre; Yi, Zhenhuan; Yuan, Luqi; Yamaguchi, Shoichi; Scully, Marlan O.; Yakovlev; Vladislav V.
  Physical Review Letters, Volume：120, Number：6, 2018
  Scientific journal
  DOI：https://doi.org/10.1103/PhysRevLett.120.063602
  DOI ID：10.1103/PhysRevLett.120.063602, ORCID：55454196, Web of Science ID：WOS:000424193100007
• Cooperative Hydrogen-Bond Dynamics at a Zwitterionic Lipid/Water Interface Revealed by 2D HD-VSFG Spectroscopy　　　　　　　　　　　　　　　
  Ken-ichi Inoue; Prashant C. Singh; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume：8, Number：20, First page：5160, Last page：5165, Oct. 2017, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpclett.7b02057
  DOI ID：10.1021/acs.jpclett.7b02057, ISSN：1948-7185, Web of Science ID：WOS:000413798300030
• Proton Order toward the Surface of Ice I-h Revealed by Heterodyne-Detected Sum Frequency Generation Spectroscopy　　　　　　　　　　　　　　　
  Yuki Nojima; Yudai Suzuki; Misato Takahashi; Shoichi Yamaguchi
  JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume：8, Number：20, First page：5031, Last page：5034, Oct. 2017, [Reviewed], [Last, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpclett.7b02198
  DOI ID：10.1021/acs.jpclett.7b02198, ISSN：1948-7185, ORCID：40809659, Web of Science ID：WOS:000413798300010
• Ultrafast Dynamics at Water Interfaces Studied by Vibrational Sum Frequency Generation Spectroscopy　　　　　　　　　　　　　　　
  Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  CHEMICAL REVIEWS, Volume：117, Number：16, First page：10665, Last page：10693, Aug. 2017
  English
  DOI：https://doi.org/10.1021/acs.chemrev.6b00728
  DOI ID：10.1021/acs.chemrev.6b00728, ISSN：0009-2665, eISSN：1520-6890, Web of Science ID：WOS:000408519200003
• Communication: Development of standing evanescent-wave fluorescence correlation spectroscopy and its application to the lateral diffusion of lipids in a supported lipid bilayer　　　　　　　　　　　　　　　
  Takuhiro Otosu; Shoichi Yamaguchi
  JOURNAL OF CHEMICAL PHYSICS, Volume：147, Number：4, First page：041101, Jul. 2017, [Reviewed], [Last]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.4985871
  DOI ID：10.1063/1.4985871, ISSN：0021-9606, eISSN：1089-7690, ORCID：36223899, Web of Science ID：WOS:000406347200002
• Heterodyne-detected sum frequency generation spectroscopy of aqueous interfaces　　　　　　　　　　　　　　　
  Yamaguchi, Shoichi
  Abstracts of Papers of the American Chemical Society, Volume：253, Apr. 2017, [Invited], [Lead, Last, Corresponding]
  Scientific journal
  ISSN：0065-7727, ORCID：55454198, Web of Science ID：WOS:000430569106683
• Vibrational Coupling at the Topmost Surface of Water Revealed by Heterodyne-Detected Sum Frequency Generation Spectroscopy　　　　　　　　　　　　　　　
  Yudai Suzuki; Yuki Nojima; Shoichi Yamaguchi
  JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume：8, Number：7, First page：1396, Last page：1401, Apr. 2017, [Reviewed], [Last, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpclett.7b00312
  DOI ID：10.1021/acs.jpclett.7b00312, ISSN：1948-7185, ORCID：36223900, Web of Science ID：WOS:000398884800012
• Weakly Hydrogen-Bonded Water Inside Charged Lipid Monolayer Observed with Heterodyne-Detected Vibrational Sum Frequency Generation Spectroscopy　　　　　　　　　　　　　　　
  Yuki Nojima; Yudai Suzuki; Shoichi Yamaguchi
  JOURNAL OF PHYSICAL CHEMISTRY C, Volume：121, Number：4, First page：2173, Last page：2180, Feb. 2017, [Reviewed], [Last, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpcc.6b09229
  DOI ID：10.1021/acs.jpcc.6b09229, ISSN：1932-7447, ORCID：31195802, Web of Science ID：WOS:000393443200017
• Comment on "Phase reference in phase-sensitive sum-frequency vibrational spectroscopy" [J. Chem. Phys. 144, 244711 (2016)]　　　　　　　　　　　　　　　
  Shoichi Yamaguchi
  JOURNAL OF CHEMICAL PHYSICS, Volume：145, Number：16, First page：167101, Oct. 2016, [Reviewed], [Lead, Last, Corresponding]
  English
  DOI：https://doi.org/10.1063/1.4965437
  DOI ID：10.1063/1.4965437, ISSN：0021-9606, eISSN：1089-7690, ORCID：29445417, Web of Science ID：WOS:000387586200058
• Standing evanescent-wave fluorescence correlation spectroscopy for analyzing the translational diffusion in bio-membranes　　　　　　　　　　　　　　　
  Takuhiro Otosu; Shoichi Yamaguchi
  ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Volume：252, Aug. 2016
  English
  ISSN：0065-7727, Web of Science ID：WOS:000431460201108
• Femtosecond Hydrogen Bond Dynamics of Bulk-like and Bound Water at Positively and Negatively Charged Lipid Interfaces Revealed by 2D HD-VSFG Spectroscopy　　　　　　　　　　　　　　　
  Prashant Chandra Singh; Ken-ichi Inoue; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, Volume：55, Number：36, First page：10621, Last page：10625, Aug. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/anie.201603676
  DOI ID：10.1002/anie.201603676, ISSN：1433-7851, eISSN：1521-3773, ORCID：29445418, Web of Science ID：WOS:000383473600014
• Bend Vibration of Surface Water Investigated by Heterodyne-Detected Sum Frequency Generation and Theoretical Study: Dominant Role of Quadrupole　　　　　　　　　　　　　　　
  Achintya Kundu; Shogo Tanaka; Tatsuya Ishiyama; Mohammed Ahmed; Ken-ichi Inoue; Satoshi Nihonyanagi; Hiromi Sawai; Shoichi Yamaguchi; Akihiro Morita; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume：7, Number：13, First page：2597, Last page：2601, Jul. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpclett.6b00657
  DOI ID：10.1021/acs.jpclett.6b00657, ISSN：1948-7185, ORCID：28499888, Web of Science ID：WOS:000379457400052
• Partially Hydrated Electrons at the Air/Water Interface Observed by UV-Excited Time-Resolved Heterodyne-Detected Vibrational Sum Frequency Generation Spectroscopy　　　　　　　　　　　　　　　
  Korenobu Matsuzaki; Ryoji Kusaka; Satoshi Nihonyanagi; Shoichi Yamaguchi; Takashi Nagata; Tahei Tahara
  JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Volume：138, Number：24, First page：7551, Last page：7557, Jun. 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jacs.6b02171
  DOI ID：10.1021/jacs.6b02171, ISSN：0002-7863, ORCID：28499890, Web of Science ID：WOS:000378584600026
• Water Structure at the Buried Silica/Aqueous Interface Studied by Heterodyne-Detected Vibrational Sum-Frequency Generation　　　　　　　　　　　　　　　
  Anton Myalitsin; Shu-hei Urashirna; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY C, Volume：120, Number：17, First page：9357, Last page：9363, May 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpcc.6b03275
  DOI ID：10.1021/acs.jpcc.6b03275, ISSN：1932-7447, ORCID：28499891, Web of Science ID：WOS:000375631100042
• Efficient Spectral Diffusion at the Air/Water Interface Revealed by Femtosecond Time-Resolved Heterodyne-Detected Vibrational Sum Frequency Generation Spectroscopy　　　　　　　　　　　　　　　
  Ken-ichi Inoue; Tatsuya Ishiyama; Satoshi Nihonyanagi; Shoichi Yamaguchi; Akihiro Morita; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume：7, Number：10, First page：1811, Last page：1815, May 2016, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpclett.6b00701
  DOI ID：10.1021/acs.jpclett.6b00701, ISSN：1948-7185, ORCID：28499889, Web of Science ID：WOS:000376421200010
• Femtosecond Ultrafast Water Dynamics at Charged Lipid Interfaces Revealed by 2D Heterodyne-Detected Vibrational Sum Frequency Generation
  Satoshi Nihonyanagi; Prashant C. Singh; Ken-ichi Inoue; Shoichi Yamaguchi; Tahei Tahara
  International Conference on Ultrafast Phenomena, 2016, [Reviewed]
  OSA, International conference proceedings
  DOI：https://doi.org/10.1364/up.2016.uth1a.3
  DOI ID：10.1364/up.2016.uth1a.3
• Accurate determination of complex chi((2)) spectrum of the air/water interface　　　　　　　　　　　　　　　
  Satoshi Nihonyanagi; Ryoji Kusaka; Ken-ichi Inoue; Aniruddha Adhikari; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：143, Number：12, Sep. 2015, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.4931485
  DOI ID：10.1063/1.4931485, ISSN：0021-9606, eISSN：1089-7690, ORCID：28499893, Web of Science ID：WOS:000362568100045
• Development of single-channel heterodyne-detected sum frequency generation spectroscopy and its application to the water/vapor interface　　　　　　　　　　　　　　　
  Shoichi Yamaguchi
  JOURNAL OF CHEMICAL PHYSICS, Volume：143, Number：3, First page：034202, Jul. 2015, [Reviewed], [Lead, Last, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.4927067
  DOI ID：10.1063/1.4927067, ISSN：0021-9606, eISSN：1089-7690, ORCID：28499896, Web of Science ID：WOS:000358429800013
• Development of Electronic Sum Frequency Generation Spectroscopies and Their Application to Liquid Interfaces　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY C, Volume：119, Number：27, First page：14815, Last page：14828, Jul. 2015, [Reviewed], [Lead, Corresponding]
  English, Scientific journal
  DOI：https://doi.org/10.1021/acs.jpcc.5b02375
  DOI ID：10.1021/acs.jpcc.5b02375, ISSN：1932-7447, ORCID：28499895, Web of Science ID：WOS:000357964900001
• 2D heterodyne-detected sum frequency generation study on the ultrafast vibrational dynamics of H2O and HOD water at charged interfaces　　　　　　　　　　　　　　　
  Ken-ichi Inoue; Satoshi Nihonyanagi; Prashant C. Singh; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：142, Number：21, First page：212431, Jun. 2015, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.4918644
  DOI ID：10.1063/1.4918644, ISSN：0021-9606, eISSN：1089-7690, ORCID：28499892, Web of Science ID：WOS:000355931800035
• Ultrafast Vibrational Dynamics of Water at a Zwitterionic Lipid/Water Interface Revealed by Two-Dimensional Heterodyne-Detected Vibrational Sum Frequency Generation (2D HD-VSFG)　　　　　　　　　　　　　　　
  Inoue Ken-ichi; Singh Prashant Chandra; Nihonyanagi Satoshi; Yamaguchi Shoichi; Tahara Tahei
  ULTRAFAST PHENOMENA XIX, Volume：162, First page：309, Last page：312, 2015, [Reviewed]
  DOI：https://doi.org/10.1007/978-3-319-13242-6_75
  DOI ID：10.1007/978-3-319-13242-6_75, ISSN：0930-8989, Web of Science ID：WOS:000357738800075
• Anomalous effective polarity of an air/liquid-mixture interface: a heterodyne-detected electronic and vibrational sum frequency generation study　　　　　　　　　　　　　　　
  Sudip Kumar Mondal; Ken-ichi Inoue; Shoichi Yamaguchi; Tahei Tahara
  PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Volume：17, Number：37, First page：23720, Last page：23723, 2015, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/c5cp04264j
  DOI ID：10.1039/c5cp04264j, ISSN：1463-9076, eISSN：1463-9084, ORCID：28499894, Web of Science ID：WOS:000361543200004
• Interfacial water in the vicinity of a positively charged interface studied by steady-state and time-resolved heterodyne-detected vibrational sum frequency generation　　　　　　　　　　　　　　　
  Prashant Chandra Singh; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：141, Number：18, Nov. 2014, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.4897265
  DOI ID：10.1063/1.4897265, ISSN：0021-9606, eISSN：1089-7690, ORCID：28499899, Web of Science ID：WOS:000344847600071
• Counterion Effect on Interfacial Water at Charged Interfaces and Its Relevance to the Hofmeister Series　　　　　　　　　　　　　　　
  Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Volume：136, Number：17, First page：6155, Last page：6158, Apr. 2014, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/ja412952y
  DOI ID：10.1021/ja412952y, ISSN：0002-7863, ORCID：28499897, Web of Science ID：WOS:000335369200002
• Evaluation of pH at Charged Lipid/Water Interfaces by Heterodyne-Detected Electronic Sum Frequency Generation　　　　　　　　　　　　　　　
  Achintya Kundu; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume：5, Number：4, First page：762, Last page：766, Feb. 2014, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jz500107e
  DOI ID：10.1021/jz500107e, ISSN：1948-7185, ORCID：28499898, Web of Science ID：WOS:000331860900021
• Ultrafast vibrational dynamics of water at a zwitterionic lipid/water interface revealed by two-dimensional heterodyne-detected vibrational sum frequency generation (2D HD-VSFG)　　　　　　　　　　　　　　　
  Ken-Ichi Inoue; Prashant Chandra Singh; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  Optics InfoBase Conference Papers, 2014
  Optical Society of America (OSA), English, International conference proceedings
  DOI：https://doi.org/10.1364/up.2014.07.mon.p1.27
  DOI ID：10.1364/up.2014.07.mon.p1.27, ISSN：2162-2701, SCOPUS ID：85087192595
• Ultrafast Vibrational Dynamics of Water Interfaces Revealed by Time-Resolved Heterodyne-Detected Vibrational Sum Frequency Generation Spectroscopy　　　　　　　　　　　　　　　
  INOUE Ken-ichi; SINGH Prashant C; NIHONYANAGI Satoshi; YAMAGUCHI Shoichi; TAHARA Tahei
  J. Surf. Sci. Soc. Jpn., Volume：35, Number：12, First page：662, Last page：667, 2014
  Molecular-level understanding of interfaces is of crucial importance in many fundamental and applied sciences. Vibrational sum frequency generation (VSFG) spectroscopy has intrinsic interface-selectivity and has been widely utilized to study molecular structures and dynamics at interfaces. However, conventional VSFG spectroscopy measures the intensity of the signal, providing only information about the square of second-order nonlinear susceptibility, |<I>χ</I>⁽²⁾|². Recently, we developed multiplex heterodyne-detected (HD-) VSFG spectroscopy. This HD-VSFG spectroscopy enables us to measure the imaginary part of <I>χ</I>⁽²⁾, Im<I>χ</I>⁽²⁾, which can be directly compared to infrared absorption and Raman spectra. Moreover, we have extended the HD-VSFG spectroscopy to time-resolved (TR-) HD-VSFG spectroscopy and two-dimensional (2D) HD-VSFG spectroscopy by combining with the pump-probe technique. This review describes development of these time-resolved HD-VSFG methods and their applications to the water interfaces.
  The Surface Science Society of Japan, Japanese
  DOI：https://doi.org/10.1380/jsssj.35.662
  DOI ID：10.1380/jsssj.35.662, ISSN：0388-5321, CiNii Articles ID：130004785031
• Communication: Ultrafast vibrational dynamics of hydrogen bond network terminated at the air/water interface: A two-dimensional heterodyne-detected vibrational sum frequency generation study　　　　　　　　　　　　　　　
  Prashant Chandra Singh; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：139, Number：16, Oct. 2013, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.4826095
  DOI ID：10.1063/1.4826095, ISSN：0021-9606, eISSN：1089-7690, ORCID：28499901, Web of Science ID：WOS:000326637500001
• Vibrational Sum Frequency Generation by the Quadrupolar Mechanism at the Nonpolar Benzene/Air Interface　　　　　　　　　　　　　　　
  Korenobu Matsuzaki; Satoshi Nihonyanagi; Shoichi Yamaguchi; Takashi Nagata; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume：4, Number：10, First page：1654, Last page：1658, May 2013, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jz400829k
  DOI ID：10.1021/jz400829k, ISSN：1948-7185, ORCID：28499905, Web of Science ID：WOS:000321793800013
• Agreement between Experimentally and Theoretically Estimated Orientational Distributions of Solutes at the Air/Water Interface　　　　　　　　　　　　　　　
  Achintya Kundu; Hidekazu Watanabe; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY C, Volume：117, Number：17, First page：8887, Last page：8891, May 2013, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jp402674u
  DOI ID：10.1021/jp402674u, ISSN：1932-7447, ORCID：28499900, Web of Science ID：WOS:000318536600034
• Computational analysis of the quadrupole contribution in the second-harmonic generation spectroscopy for the water/vapor interface (vol 138, 064704, 2013)　　　　　　　　　　　　　　　
  Kazuya Shiratori; Shoichi Yamaguchi; Tahei Tahara; Akihiro Morita
  JOURNAL OF CHEMICAL PHYSICS, Volume：138, Number：15, Apr. 2013, [Reviewed]
  English
  DOI：https://doi.org/10.1063/1.4802916
  DOI ID：10.1063/1.4802916, ISSN：0021-9606, ORCID：28499903, Web of Science ID：WOS:000317814900047
• Computational analysis of the quadrupole contribution in the second-harmonic generation spectroscopy for the water/vapor interface　　　　　　　　　　　　　　　
  Shiratori Kazuya; Shoichi Yamaguchi; Tahei Tahara; Akihiro Morita
  JOURNAL OF CHEMICAL PHYSICS, Volume：138, Number：6, Feb. 2013, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.4790407
  DOI ID：10.1063/1.4790407, ISSN：0021-9606, eISSN：1089-7690, ORCID：28499902, Web of Science ID：WOS:000315054400035
• Structure and Dynamics of Interfacial Water Studied by Heterodyne-Detected Vibrational Sum-Frequency Generation　　　　　　　　　　　　　　　
  Satoshi Nihonyanagi; Jahur A. Mondal; Shoichi Yamaguchi; Tahei Tahara
  ANNUAL REVIEW OF PHYSICAL CHEMISTRY, VOL 64, Volume：64, First page：579, Last page：603, 2013, [Reviewed]
  English, In book
  DOI：https://doi.org/10.1146/annurev-physchem-040412-110138
  DOI ID：10.1146/annurev-physchem-040412-110138, ISSN：0066-426X, ORCID：28499904, Web of Science ID：WOS:000321771600026
• Communication: Quantitative estimate of the water surface pH using heterodyne-detected electronic sum frequency generation　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Achintya Kundu; Pratik Sen; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：137, Number：15, Oct. 2012, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.4758805
  DOI ID：10.1063/1.4758805, ISSN：0021-9606, ORCID：28499906, Web of Science ID：WOS:000310307100001
• Ultrafast vibrational dynamics of water at a charged interface revealed by two-dimensional heterodyne-detected vibrational sum frequency generation　　　　　　　　　　　　　　　
  Prashant Chandra Singh; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：137, Number：9, Sep. 2012, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.4747828
  DOI ID：10.1063/1.4747828, ISSN：0021-9606, eISSN：1089-7690, ORCID：28499909, Web of Science ID：WOS:000309092000045
• Ultrafast Vibrational Dynamics of a Charged Aqueous Interface by Femtosecond Time-Resolved Heterodyne-Detected Vibrational Sum Frequency Generation　　　　　　　　　　　　　　　
  Satoshi Nihonyanagi; Prashant C. Singh; Shoichi Yamaguchi; Tahei Tahara
  BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, Volume：85, Number：7, First page：758, Last page：760, Jul. 2012, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1246/bcsj.20120051
  DOI ID：10.1246/bcsj.20120051, ISSN：0009-2673, eISSN：1348-0634, ORCID：28499908, Web of Science ID：WOS:000307797100004
• Three Distinct Water Structures at a Zwitterionic Lipid/Water Interface Revealed by Heterodyne-Detected Vibrational Sum Frequency Generation　　　　　　　　　　　　　　　
  Jahur A. Mondal; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Volume：134, Number：18, First page：7842, Last page：7850, May 2012, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/ja300658h
  DOI ID：10.1021/ja300658h, ISSN：0002-7863, ORCID：28499907, Web of Science ID：WOS:000303696200045
• "Up" versus "down" alignment and hydration structures of solutes at the air/water interface revealed by heterodyne-detected electronic sum frequency generation with classical molecular dynamics simulation　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Hidekazu Watanabe; Sudip Kumar Mondal; Achintya Kundu; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：135, Number：19, Nov. 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.3662136
  DOI ID：10.1063/1.3662136, ISSN：0021-9606, ORCID：28499910, Web of Science ID：WOS:000297473300038
• Unified Molecular View of the Air/Water Interface Based on Experimental and Theoretical chi((2)) Spectra of an Isotopically Diluted Water Surface　　　　　　　　　　　　　　　
  Satoshi Nihonyanagi; Tatsuya Ishiyama; Touk-kwan Lee; Shoichi Yamaguchi; Mischa Bonn; Akihiro Morita; Tahei Tahara
  JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Volume：133, Number：42, First page：16875, Last page：16880, Oct. 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/ja2053754
  DOI ID：10.1021/ja2053754, ISSN：0002-7863, ORCID：28499914, Web of Science ID：WOS:000296678200035
• Heterodyne-Detection of Vibrational Sum Frequency Generation and Local Molecular Structures at Liquid Interfaces　　　　　　　　　　　　　　　
  NIHONYANAGI Satoshi; YAMAGUCHI Shoichi; MONDAL Jahur A.; TAHARA Tahei
  Japanese journal of optics, Volume：40, Number：8, First page：415, Last page：420, Aug. 2011
  Japanese
  ISSN：0389-6625, CiNii Articles ID：10029467817, CiNii Books ID：AN00080324
• Electric quadrupole contribution to the nonresonant background of sum frequency generation at air/liquid interfaces　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Kazuya Shiratori; Akihiro Morita; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：134, Number：18, First page：7, May 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.3586811
  DOI ID：10.1063/1.3586811, ISSN：0021-9606, ORCID：28499912, Web of Science ID：WOS:000290589900037
• Acid-Base Equilibrium at an Aqueous Interface: pH Spectrometry by Heterodyne-Detected Electronic Sum Frequency Generation　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Kankan Bhattacharyya; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY C, Volume：115, Number：10, First page：4168, Last page：4173, Mar. 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jp1113174
  DOI ID：10.1021/jp1113174, ISSN：1932-7447, eISSN：1932-7455, ORCID：28499911, Web of Science ID：WOS:000288113400042
• Molecules at the Air/Water Interface Experience a More Inhomogeneous Solvation Environment than in Bulk Solvents: A Quantitative Band Shape Analysis of Interfacial Electronic Spectra Obtained by HD-ESFG　　　　　　　　　　　　　　　
  Sudip Kumar Mondal; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY C, Volume：115, Number：7, First page：3083, Last page：3089, Feb. 2011, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jp110456t
  DOI ID：10.1021/jp110456t, ISSN：1932-7447, ORCID：28499913, Web of Science ID：WOS:000287338100023
• Physisorption Gives Narrower Orientational Distribution than Chemisorption on a Glass Surface: A Polarization-Sensitive Linear and Nonlinear Optical Study　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Haruko Hosoi; Megumi Yamashita; Pratik Sen; Tahei Taharat
  JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume：1, Number：18, First page：2662, Last page：2665, Sep. 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jz101142m
  DOI ID：10.1021/jz101142m, ISSN：1948-7185, ORCID：28499916, Web of Science ID：WOS:000282017400008
• Structure and Orientation of Water at Charged Lipid Monolayer/Water Interfaces Probed by Heterodyne-Detected Vibrational Sum Frequency Generation Spectroscopy　　　　　　　　　　　　　　　
  Jahur A. Mondal; Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Volume：132, Number：31, First page：10656, Last page：10657, Aug. 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/ja104327t
  DOI ID：10.1021/ja104327t, ISSN：0002-7863, ORCID：28499917, Web of Science ID：WOS:000280692200015
• Water Hydrogen Bond Structure near Highly Charged Interfaces Is Not Like Ice　　　　　　　　　　　　　　　
  Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Volume：132, Number：20, First page：6867, Last page：+, May 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/ja910914g
  DOI ID：10.1021/ja910914g, ISSN：0002-7863, ORCID：28499919, Web of Science ID：WOS:000277999700001
• Half hydration' at the air/water interface revealed by HD-ESFG spectroscopy, polarization SHG, and MD simulation　　　　　　　　　　　　　　　
  Hidekazu Watanabe; Shoichi Yamaguchi; Sobhan Sen; Akihiro Morita; Tahei Tahara
  J. Chem. Phys., Volume：132, Number：14, First page：144701, Apr. 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.3372620
  DOI ID：10.1063/1.3372620
• "Half-hydration" at the air/water interface revealed by heterodyne-detected electronic sum frequency generation spectroscopy, polarization second harmonic generation, and molecular dynamics simulation　　　　　　　　　　　　　　　
  Hidekazu Watanabe; Shoichi Yamaguchi; Sobhan Sen; Akihiro Morita; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：132, Number：14, First page：9, Apr. 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.3372620
  DOI ID：10.1063/1.3372620, ISSN：0021-9606, ORCID：28499915, Web of Science ID：WOS:000276973500028
• Ultrafast dynamics of malachite green at the air/water interface studied by femtosecond time-resolved electronic sum frequency generation (TR-ESFG): an indicator for local viscosity　　　　　　　　　　　　　　　
  Pratik Sen; Shoichi Yamaguchi; Tahei Tahara
  FARADAY DISCUSSIONS, Volume：145, First page：411, Last page：428, 2010, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1039/b908097j
  DOI ID：10.1039/b908097j, ISSN：1364-5498, ORCID：28499918, Web of Science ID：WOS:000273708000022
• Direct evidence for orientational flip-flop of water molecules at charged interfaces: A heterodyne-detected vibrational sum frequency generation study　　　　　　　　　　　　　　　
  Satoshi Nihonyanagi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：130, Number：20, First page：5, May 2009, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.3135147
  DOI ID：10.1063/1.3135147, ISSN：0021-9606, eISSN：1089-7690, ORCID：28499921, Web of Science ID：WOS:000266500200043
• Ultrafast Dynamics at Liquid Interfaces Investigated with Femtosecond Time-Resolved Multiplex Electronic Sum-Frequency Generation (TR-ESFG) Spectroscopy　　　　　　　　　　　　　　　
  Kentaro Sekiguchi; Shoichi Yamaguchi; Tahei Tahara
  ULTRAFAST PHENOMENA XVI, Volume：92, First page：520, Last page：522, 2009, [Reviewed]
  English, International conference proceedings
  ISSN：0172-6218, Web of Science ID：WOS:000282108000169
• Different Molecules Experience Different Polarities at the Air/Water Interface　　　　　　　　　　　　　　　
  Sobhan Sen; Shoichi Yamaguchi; Tahei Tahara
  ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, Volume：48, Number：35, First page：6439, Last page：6442, 2009, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/anie.200901094
  DOI ID：10.1002/anie.200901094, ISSN：1433-7851, ORCID：28499920, Web of Science ID：WOS:000269239700012
• Coherent acoustic phonons in a thin gold film probed by femtosecond surface plasmon resonance　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF RAMAN SPECTROSCOPY, Volume：39, Number：11, First page：1703, Last page：1706, Nov. 2008, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/jrs.2078
  DOI ID：10.1002/jrs.2078, ISSN：0377-0486, ORCID：28499922, Web of Science ID：WOS:000261206200027
• New Insight into the Surface Denaturation of Proteins: Electronic Sum Frequency Generation Study of Cytochrome c at Water Interfaces　　　　　　　　　　　　　　　
  Pratik Sen; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY B, Volume：112, Number：43, First page：13473, Last page：13475, Oct. 2008, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jp8061288
  DOI ID：10.1021/jp8061288, ISSN：1520-6106, ORCID：28499926, Web of Science ID：WOS:000260357700002
• Heterodyne-detected electronic sum frequency generation: "Up" versus "down" alignment of interfacial molecules　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：129, Number：10, Sep. 2008, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.2981179
  DOI ID：10.1063/1.2981179, ISSN：0021-9606, Web of Science ID：WOS:000259883600002
• Heterodyne-detected electronic sum frequency generation: "Up" versus "down" alignment of interfacial molecules　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：129, Number：10, First page：4, Sep. 2008, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.2981179
  DOI ID：10.1063/1.2981179, ISSN：0021-9606, ORCID：28499924, Web of Science ID：WOS:000259883600002
• PHYS 351-Ultrafast dynamics at the air/water interface investigated with time-resolved electronic sum-frequency generation (TR-ESFG) spectroscopy　　　　　　　　　　　　　　　
  Kentaro Sekiguchi; Shoichi Yamaguchi; Tahei Tahara
  ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Volume：235, Apr. 2008
  English
  ISSN：0065-7727, Web of Science ID：WOS:000271775109234
• PHYS 27-Hidden electronic excited state of enhanced green fluorescent protein (eGFP) by new multiplex two-photon absorption spectroscopy　　　　　　　　　　　　　　　
  Haruko Hosoi; Shoichi Yamaguchi; Hideaki Mizuno; Atsushi Miyawaki; Tahei Tahara
  ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Volume：235, Apr. 2008, [Reviewed]
  English
  ISSN：0065-7727, Web of Science ID：WOS:000271775108798
• Novel interface-selective even-order nonlinear spectroscopy　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Tahei Tahara
  LASER & PHOTONICS REVIEWS, Volume：2, Number：1-2, First page：74, Last page：82, Apr. 2008, [Reviewed]
  English
  DOI：https://doi.org/10.1002/lpor.200710027
  DOI ID：10.1002/lpor.200710027, ISSN：1863-8880, ORCID：28499927, Web of Science ID：WOS:000255328600005
• Hidden electronic excited state of enhanced green fluorescent protein　　　　　　　　　　　　　　　
  Haruko Hosoi; Shoichi Yamaguchi; Hideaki Mizuno; Atsushi Miyawaki; Tahei Tahara
  JOURNAL OF PHYSICAL CHEMISTRY B, Volume：112, Number：10, First page：2761, Last page：2763, Mar. 2008, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jp711628u
  DOI ID：10.1021/jp711628u, ISSN：1520-6106, ORCID：28499925, Web of Science ID：WOS:000253784700002
• Femtosecond time-resolved electronic sum-frequency generation spectroscopy: A new method to investigate ultrafast dynamics at liquid interfaces　　　　　　　　　　　　　　　
  Kentaro Sekiguchi; Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：128, Number：11, First page：8, Mar. 2008, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.2841023
  DOI ID：10.1063/1.2841023, ISSN：0021-9606, ORCID：28499923, Web of Science ID：WOS:000254292500065
• Novel even-order nonlinear spectroscopy for liquid interfaces: Interface-specific hydrogen bonds and interfacial polarity　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Sobhan Sen; Tahei Tahara
  ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Volume：233, Mar. 2007
  English
  ISSN：0065-7727, Web of Science ID：WOS:000207722807310
• New interface-selective even-order nonlinear spectroscopy　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Tahei Tahara
  2007 PACIFIC RIM CONFERENCE ON LASERS AND ELECTRO-OPTICS, VOLS 1-4, First page：851, Last page：852, 2007, [Reviewed]
  English, International conference proceedings
  DOI：https://doi.org/10.1109/CLEOPR.2007.4391513
  DOI ID：10.1109/CLEOPR.2007.4391513, Web of Science ID：WOS:000256956600429
• chi((4)) Raman spectroscopy for buried water interfaces　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Tahei Tahara
  ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, Volume：46, Number：40, First page：7609, Last page：7612, 2007, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1002/anie.200701609
  DOI ID：10.1002/anie.200701609, ISSN：1433-7851, eISSN：1521-3773, ORCID：28499928, Web of Science ID：WOS:000250249300013
• Determining electronic spectra at interfaces by electronic sum frequency generation: One- and two-photon double resonant oxazine 750 at the air/water interface　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Tahei Tahara
  JOURNAL OF CHEMICAL PHYSICS, Volume：125, Number：19, First page：8, Nov. 2006, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.2375093
  DOI ID：10.1063/1.2375093, ISSN：0021-9606, ORCID：28499929, Web of Science ID：WOS:000242181800074
• Formation and dissociation of rhodamine 800 dimers in water: Steady-state and ultrafast spectroscopic study　　　　　　　　　　　　　　　
  K Sekiguchi; S Yamaguchi; T Tahara
  JOURNAL OF PHYSICAL CHEMISTRY A, Volume：110, Number：8, First page：2601, Last page：2606, Mar. 2006, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jp055027p
  DOI ID：10.1021/jp055027p, ISSN：1089-5639, ORCID：28499930, Web of Science ID：WOS:000235943700005
• Multiplex electronic sum frequency generation spectroscopy of dye molecules at the air/water interface　　　　　　　　　　　　　　　
  Shoichi Yamaguchi; Kentaro Sekiguchi; Tahei Tahara
  Femtochemistry VII, First page：245, Last page：248, 2006, [Reviewed]
  Elsevier, English, In book
  DOI：https://doi.org/10.1016/B978-044452821-6/50036-8
  DOI ID：10.1016/B978-044452821-6/50036-8, SCOPUS ID：84882502327
• Interface-specific chi((4)) coherent Raman spectroscopy in the frequency domain　　　　　　　　　　　　　　　
  S Yamaguchi; T Tahara
  JOURNAL OF PHYSICAL CHEMISTRY B, Volume：109, Number：51, First page：24211, Last page：24214, Dec. 2005, [Reviewed]
  English
  DOI：https://doi.org/10.1021/jp0542064
  DOI ID：10.1021/jp0542064, ISSN：1520-6106, ORCID：28499932, Web of Science ID：WOS:000234259900001
• Relaxation dynamics of the hydrated electron: Femtosecond time-resolved resonance Raman and luminescence study　　　　　　　　　　　　　　　
  M Mizuno; S Yamaguchi; T Tahara
  JOURNAL OF PHYSICAL CHEMISTRY A, Volume：109, Number：24, First page：5257, Last page：5265, Jun. 2005, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jp050828d
  DOI ID：10.1021/jp050828d, ISSN：1089-5639, ORCID：28499933, Web of Science ID：WOS:000229866900003
• Host to guest energy transfer in a self-assembled supramolecular nanocage observed by picosecond fluorescence quenching　　　　　　　　　　　　　　　
  H Hosoi; S Yamaguchi; T Tahara
  CHEMISTRY LETTERS, Volume：34, Number：4, First page：618, Last page：619, Apr. 2005, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1246/cl.2005.618
  DOI ID：10.1246/cl.2005.618, ISSN：0366-7022, eISSN：1348-0715, ORCID：28499931, Web of Science ID：WOS:000228541600081
• Precise electronic X-(2) spectra of molecules adsorbed at an interface measured by multiplex sum frequency generation　　　　　　　　　　　　　　　
  S Yamaguchi; T Tahara
  JOURNAL OF PHYSICAL CHEMISTRY B, Volume：108, Number：50, First page：19079, Last page：19082, Dec. 2004, [Reviewed]
  English
  DOI：https://doi.org/10.1021/jp045306x
  DOI ID：10.1021/jp045306x, ISSN：1520-6106, ORCID：28499935, Web of Science ID：WOS:000225695100001
• Observation of an optically forbidden state of C-60 by nondegenerate two-photon absorption spectroscopy　　　　　　　　　　　　　　　
  S Yamaguchi; T Tahara
  CHEMICAL PHYSICS LETTERS, Volume：390, Number：1-3, First page：136, Last page：139, May 2004, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/j.cplett.2004.03.146
  DOI ID：10.1016/j.cplett.2004.03.146, ISSN：0009-2614, ORCID：28499934, Web of Science ID：WOS:000221628400025
• Femtosecond dynamics of the solvated electron in water studied by time-resolved Raman spectroscopy　　　　　　　　　　　　　　　
  M Mizuno; S Yamaguchi; T Tahara
  FEMTOCHEMISTRY AND FEMTOBIOLOGY: ULTRAFAST EVENTS IN MOLECULAR SCIENCE, First page：225, Last page：228, 2004, [Reviewed]
  English, International conference proceedings
  Web of Science ID：WOS:000222945300044
• Precise two-photon absorption measurements of biomolecules using femtosecond broadband pulses.　　　　　　　　　　　　　　　
  S Yamaguchi; T Tahara
  ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Volume：226, First page：U333, Last page：U333, Sep. 2003
  English
  ISSN：0065-7727, Web of Science ID：WOS:000187062501700
• Two-photon absorption spectrum of all-trans retinal　　　　　　　　　　　　　　　
  S Yamaguchi; T Tahara
  CHEMICAL PHYSICS LETTERS, Volume：376, Number：1-2, First page：237, Last page：243, Jul. 2003, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/S0009-2614(03)00984-9
  DOI ID：10.1016/S0009-2614(03)00984-9, ISSN：0009-2614, ORCID：28499936, Web of Science ID：WOS:000184315600037
• Oxidative cyclization of bis(biaryl)acetylenes: Synthesis and photophysics of dibenzo[g,p]chrysene-based fluorescent polymers　　　　　　　　　　　　　　　
  S Yamaguchi; TM Swager
  JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Volume：123, Number：48, First page：12087, Last page：12088, Dec. 2001, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/ja016692o
  DOI ID：10.1021/ja016692o, ISSN：0002-7863, Web of Science ID：WOS:000172591000031
• Spectroscopic determination of very low quantum yield of singlet oxygen formation photosensitized by industrial dyes　　　　　　　　　　　　　　　
  S Yamaguchi; Y Sasaki
  JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, Volume：142, Number：1, First page：47, Last page：50, Aug. 2001, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/S1010-6030(01)00470-1
  DOI：https://doi.org/10.1016/s1010-6030(01)00470-1
  DOI ID：10.1016/S1010-6030(01)00470-1, ISSN：1010-6030, ORCID：28499937, Web of Science ID：WOS:000170672600007
• Effect of water on primary photocarrier-generation process in Y-form titanyl phthalocyanine　　　　　　　　　　　　　　　
  S Yamaguchi; Y Sasaki
  JOURNAL OF PHYSICAL CHEMISTRY B, Volume：104, Number：39, First page：9225, Last page：9229, Oct. 2000, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jp0019557
  DOI ID：10.1021/jp0019557, ISSN：1089-5647, ORCID：28499939, Web of Science ID：WOS:000089712900023
• Construction of electric-field-modulated picosecond time-resolved fluorescence spectrometer　　　　　　　　　　　　　　　
  S Yamaguchi; Y Sasaki
  JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, Volume：39, Number：10, First page：6107, Last page：6108, Oct. 2000, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1143/JJAP.39.6107
  DOI ID：10.1143/JJAP.39.6107, ISSN：0021-4922, ORCID：28499938, Web of Science ID：WOS:000090139000076
• Primary carrier-generation process in Y-form and phase I titanyl phthalocyanines　　　　　　　　　　　　　　　
  S Yamaguchi; Y Sasaki
  CHEMICAL PHYSICS LETTERS, Volume：323, Number：1-2, First page：35, Last page：42, Jun. 2000, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/S0009-2614(00)00475-9
  DOI：https://doi.org/10.1016/s0009-2614(00)00475-9
  DOI ID：10.1016/S0009-2614(00)00475-9, ISSN：0009-2614, ORCID：28499940, Web of Science ID：WOS:000087538200006
• Ultrafast electronic relaxation and hydrogen-bond-formation/dissociation dynamics of photoexcited all-trans retinal in protic solvents　　　　　　　　　　　　　　　
  S Yamaguchi; H Hamaguchi
  JOURNAL OF PHYSICAL CHEMISTRY A, Volume：104, Number：18, First page：4272, Last page：4279, May 2000, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1021/jp993551o
  DOI ID：10.1021/jp993551o, ISSN：1089-5639, ORCID：28499941, Web of Science ID：WOS:000087003100019
• Primary process of photocarrier generation in Y-form titanyl phthalocyanine studied by electric-field-modulated picosecond time-resolved fluorescence spectroscopy　　　　　　　　　　　　　　　
  S Yamaguchi; Y Sasaki
  JOURNAL OF PHYSICAL CHEMISTRY B, Volume：103, Number：33, First page：6835, Last page：6838, Aug. 1999, [Reviewed]
  English
  DOI：https://doi.org/10.1021/jp991892w
  DOI ID：10.1021/jp991892w, ISSN：1089-5647, ORCID：28499942, Web of Science ID：WOS:000082335600001
• Two distinct solvated structures of para-nitroaniline in acetonitrile and their dissociation and reassociation dynamics　　　　　　　　　　　　　　　
  K Mohanalingam; S Yamaguchi; H Hamaguchi
  LASER CHEMISTRY, Volume：19, Number：1-4, First page：329, Last page：333, 1999, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1155/1999/63925
  DOI ID：10.1155/1999/63925, ISSN：0278-6273, ORCID：28499943, Web of Science ID：WOS:000081370000058
• Femtosecond ultraviolet-visible absorption study of all-trans -> 13-cis center dot 9-cis photoisomerization of retinal　　　　　　　　　　　　　　　
  S Yamaguchi; H Hamaguchi
  JOURNAL OF CHEMICAL PHYSICS, Volume：109, Number：4, First page：1397, Last page：1408, Jul. 1998, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.476692
  DOI ID：10.1063/1.476692, ISSN：0021-9606, ORCID：28499944, Web of Science ID：WOS:000075255600025
• Femtosecond visible absorption study of excited-state dynamics of 9-cis retinal　　　　　　　　　　　　　　　
  S Yamaguchi; H Hamaguchi
  CHEMICAL PHYSICS LETTERS, Volume：287, Number：5-6, First page：694, Last page：700, May 1998, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/S0009-2614(98)00234-6
  DOI：https://doi.org/10.1016/s0009-2614(98)00234-6
  DOI ID：10.1016/S0009-2614(98)00234-6, ISSN：0009-2614, ORCID：28499945, Web of Science ID：WOS:000073718500035
• Femtosecond time-resolved absorption spectroscopy of all-trans-retinal in hexane　　　　　　　　　　　　　　　
  S Yamaguchi; HO Hamaguchi
  JOURNAL OF MOLECULAR STRUCTURE, Volume：379, First page：87, Last page：92, Jun. 1996, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/0022-2860(95)09178-5
  DOI ID：10.1016/0022-2860(95)09178-5, ISSN：0022-2860, ORCID：28499947, Web of Science ID：WOS:A1996UQ82400010
• Exciton dynamics in poly(p-pyridyl vinylene)　　　　　　　　　　　　　　　
  JW Blatchford; SW Jessen; LB Lin; JJ Lih; TL Gustafson; AJ Epstein; DK Fu; MJ Marsella; TM Swager; AG MacDiarmid; S Yamaguchi; H Hamaguchi
  PHYSICAL REVIEW LETTERS, Volume：76, Number：9, First page：1513, Last page：1516, Feb. 1996, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1103/PhysRevLett.76.1513
  DOI ID：10.1103/PhysRevLett.76.1513, ISSN：0031-9007, ORCID：28499946, Web of Science ID：WOS:A1996TW70000028
• CONVENIENT METHOD OF MEASURING THE CHIRP STRUCTURE OF FEMTOSECOND WHITE-LIGHT CONTINUUM PULSES　　　　　　　　　　　　　　　
  S YAMAGUCHI; HO HAMAGUCHI
  APPLIED SPECTROSCOPY, Volume：49, Number：10, First page：1513, Last page：1515, Oct. 1995, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1366/0003702953965434
  DOI ID：10.1366/0003702953965434, ISSN：0003-7028, ORCID：28499948, Web of Science ID：WOS:A1995TD15400018
• ULTRAFAST VIBRATIONAL-RELAXATION IN PHOTOGENERATED S(1) ALPHA-TERTHIOPHENE IN SOLUTION BY FEMTOSECOND TIME-RESOLVED ABSORPTION EMISSION AND PICOSECOND TIME-RESOLVED RAMAN-SPECTROSCOPY　　　　　　　　　　　　　　　
  S YAMAGUCHI; H HAMAGUCHI
  CHEMICAL PHYSICS LETTERS, Volume：227, Number：3, First page：255, Last page：260, Sep. 1994, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1016/0009-2614(94)00832-9
  DOI ID：10.1016/0009-2614(94)00832-9, ISSN：0009-2614, eISSN：1873-4448, ORCID：28499949, Web of Science ID：WOS:A1994PF45600004
• Picosecond dynamics of photoexcited transient species of p-phenylenes; Population decay and structural chance　　　　　　　　　　　　　　　
  S YAMAGUCHI; H HAMAGUCHI
  FOURTEENTH INTERNATIONAL CONFERENCE ON RAMAN SPECTROSCOPY, First page：496, Last page：497, 1994, [Reviewed]
  English, International conference proceedings
  Web of Science ID：WOS:A1994BD55D00225
• CONSTRUCTION OF A TRANSFORM-LIMITED PICOSECOND TIME-RESOLVED RAMAN SPECTROMETER　　　　　　　　　　　　　　　
  K IWATA; S YAMAGUCHI; H HAMAGUCHI
  REVIEW OF SCIENTIFIC INSTRUMENTS, Volume：64, Number：8, First page：2140, Last page：2146, Aug. 1993, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1063/1.1143951
  DOI ID：10.1063/1.1143951, ISSN：0034-6748, ORCID：28499950, Web of Science ID：WOS:A1993LR97900006

• Applications of Theoretical Methods in Vibrational Spectroscopy
  Shoichi Yamaguchi, [Single work], All
  Springer Nature, Sep. 2025, [Reviewed]
  English, Total pages：243, Responsible for pages：243, Scholarly book
  This book provides unique introduction for experimentalists to theoretically calculate vibrational (IR, Raman, SFG) spectra of molecules in liquid and solid phases. Vibrational spectroscopy is the most popular and valuable tool for scientists to obtain physicochemical insight into complex molecular systems. Although standard softwares of quantum chemistry calculations routinely provide predictions of spectra, this book describes dynamic aspects and spectroscopic accuracy enough to compare our experimental data directly to computations, that lack in the softwares. The quantum/classical mixed approach presented in this book allows researchers including graduate students of chemistry and physics to extract microscopic information of structure and dynamics from their vibrational spectroscopic experimental data with no help from theoreticians.
  DOI：https://doi.org/10.1007/978-981-96-4628-9
  DOI ID：10.1007/978-981-96-4628-9, ISBN：9789819646272

• Our recent activity in SFG spectroscopy　　　　　　　　　　　　　　　
  Shoichi Yamaguchi
  Telluride Workshop on Advances of Multidimensional Vibrational Spectroscopy in Water, Biology and Materials Science, Jul. 2026, [Invited], [International conference]
  Jul. 2026 - Jul. 2026, English, Invited oral presentation, Telluride, CO, United States

• Oct. 2021 - Present
  Fundamental Electromagnetism, Saitama University
• Oct. 2019 - Present
  応用化学実験II: Igor実習
• Apr. 2014 - Present
  Linear Laser Spectroscopy, Saitama University
• Apr. 2014 - Present
  Physical Chemistry I, Saitama University
• Oct. 2016 - Mar. 2020
  Physical Chemistry IV, Saitama University

• Apr. 2018 - Present, Spectroscopical Society of Japan
• Apr. 2007 - Present, Japan Society for Molecular Science
• Apr. 2003 - Present, American Chemical Society
• Apr. 1993 - Mar. 2022, Chemical Society of Japan
• Apr. 1991 - Mar. 1995, Physical Society of Japan

• Second-order Nonlinear Spectroscopy for Surfaces and Interfaces　　　　　　　　　　　　　　　
  Shoichi Yamaguchi
  Apr. 2013 - Present, [Educational materials]
  Apple iBooks
  Based upon a text for Summer School of Molecular Science in 2011

• 水/水，水/氷，氷/氷界面の構造とダイナミクス　　　　　　　　　　　　　　　
  01 Apr. 2022 - 31 Mar. 2027
  Grant amount(Total)：17290000, Direct funding：13300000, Indirect funding：3990000
  Grant number：23K23295
• アミロイド形成を促す脂質‐蛋白質間相互作用の分子機構解明　　　　　　　　　　　　　　　
  01 Apr. 2019 - 31 Mar. 2023
  Grant amount(Total)：15600000, Direct funding：12000000, Indirect funding：3600000
  Grant number：19H02669
• Structure and Dynamics of Single-Crystalline Ice Ih Interfaces　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2018 - 31 Mar. 2022
  Yamaguchi Shoichi, Saitama University
  Grant amount(Total)：17160000, Direct funding：13200000, Indirect funding：3960000
  Among numerous crystalline phases of ice, the Ih phase is the most stable above 72 K at atmospheric pressure. It is well established that the orientations of water molecules in the bulk of ice Ih are statistical without long-range order. However, the orientational order of water at the surface of ice Ih has been enigmatic. Here we show that the surface of ice Ih at 100 K has hydrogen order with the OH group pointing upward to the air ("H-up" orientation). We applied nonlinear optical spectroscopy and theoretical modeling to the surface of isotopically pure and diluted ice Ih and observed OH stretch vibrational signatures attributed to H-up ordering. Furthermore, we found that this hydrogen order takes place despite more inhomogeneous microenvironment at the surface than in the bulk. Our results suggest the prominent role of the surface to allow the reorientation of water molecules for hydrogen ordering that is virtually prohibited in the bulk.
  Grant number：18H01934
• Transition states of interfacial chemical reactions revealed by novel interface-selective even-order nonlinear spectroscopy　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 10 Jul. 2015 - 31 Mar. 2018
  Yamaguchi Shoichi, Saitama University
  Grant amount(Total)：18070000, Direct funding：13900000, Indirect funding：4170000
  Among numerous crystalline phases of ice, the Ih phase is the most stable at atmospheric pressure. It is well established that the orientations of water molecules in the bulk of ice Ih are disordered or random within the ice rules. However, the orientational order of water at surfaces of ice Ih is yet to be established. Although surface proton order of ice Ih has been investigated and suggested by some theoretical studies, no experimental evidence has been reported so far because of the lack of suitable techniques. Here we show that the surfaces of ice Ih definitely have proton order with the OH group pointing upward to the air. We applied an advanced spectroscopic technique to the ice surfaces at ca. 130 K and observed vibrational signatures of the OH stretch that directly indicate H-up orientation of water. Furthermore, we found that this surface proton order takes place irrespective of the faces of ice.
  Grant number：15KT0056
• Study of Complex Molecular Systems by Ultrafast and Nonlinear Spectroscopy　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), 28 Jun. 2013 - 31 Mar. 2018
  TAHARA Tahei; NIHONYANAGI Satoshi; KURAMOCHI Hikaru, Institute of Physical and Chemical Research
  Grant amount(Total)：141050000, Direct funding：108500000, Indirect funding：32550000
  We studied complex molecular systems by the best spectroscopic measurements. We made numerous research achievements, while strongly promoting collaboration with researchers in this project. Particularly, (1) in ultrafast spectroscopy, we have realized an “ultimate” form of time-resolved impulsive stimulated Raman spectroscopy that we developed. We also clarified the ultrafast process of various biomolecules, supramolecules and functional molecules. (2) In interface-selective nonlinear spectroscopy, we have investigated interfacial water structure by utilizing heterodyne-detected vibrational sum-frequency generation spectroscopy (HD-VSFG)developed by us．We also studied interfacial dynamics by developing two-dimensional HD-VSFG spectroscopy and time-resolved measurement with ultraviolet excitation. (3) In the study of single molecule spectroscopy, we developed 2D fluorescence lifetime correlation spectroscopy, We studied protein folding processes, and obtained new important findings.
  Grant number：25104005
• Development of single-channel heterodyne-detected sum frequency generation spectroscopy and its application to interface physicochemistry　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Challenging Exploratory Research, 01 Apr. 2015 - 31 Mar. 2017
  YAMAGUCHI Shoichi, Saitama University
  Grant amount(Total)：3900000, Direct funding：3000000, Indirect funding：900000
  Single-channel heterodyne-detected sum frequency generation (HD-SFG) spectroscopy for selectively measuring vibrational spectra of liquid interfaces is presented. This new methodology is based on optical interference between sum frequency signal light from a sample interface and phase-controlled local oscillator light. In single-channel HD-SFG, interferometric and spectrometric measurements are simultaneously carried out with an input IR laser scanned in a certain wavenumber range, which results in a less task than existing phase-sensitive sum frequency spectroscopy. The real and imaginary parts of second-order nonlinear optical susceptibility (χ(2)) of interfaces are separately obtained with spectral resolution as high as 4 cm-1 that is approximately six times better than existing multiplex HD-SFG.
  Grant number：15K13616
• Development of HD-SFG for buried interfaces and its application　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2013 - 31 Mar. 2016
  YAMAGUCHI Shoichi
  Grant amount(Total)：18850000, Direct funding：14500000, Indirect funding：4350000
  Heterodyne-detected sum frequency generation (HD-SFG) has been applied only to "unburied" interfaces such as air/liquid and air/solid interfaces, because the optically-thick bulk makes it difficult to determine the phase of an electric field, which hinders the heterodyne detection. Here we report that HD-SFG for "buried" interfaces can be carried out by the precise measurement of the bulk thickness and the rigorous expression of the signal electric field.
  Grant number：25288014
• Development of New Interface-Selective Nonlinear Spectroscopy and Its Application to the Study of Dynamics at Liquid Interfaces　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (A), 01 Apr. 2012 - 31 Mar. 2015
  TAHARA Tahei; YAMAGUCHI Shoichi; ISHIYAMA Tatsuya, The Institute of Physical and Chemical Research
  Grant amount(Total)：46150000, Direct funding：35500000, Indirect funding：10650000
  Because interfaces play crucial roles in many phenomena that are important in a wide range of science and technology, molecular-level understanding of interfaces is highly desired. In this study, we developed new interface-selective time-resolved nonlinear vibrational spectroscopic methods, by combining the femtosecond photoexcitation and multiplex heterodyne-detected vibrational sum-frequency generation technique developed by us. Using the newly developed methods, we succeeded in tracing femtosecond-picosecond dynamics at water interfaces, including the observation of hole-burning indicating inhomogeneity of hydrogen bonds of interfacial water as well as the following spectral diffusion that occurs on the time scale of a few hundred femtoseconds.
  Grant number：24245006
• Protein Structure Analysis by Second-order Nonlinear Spectroscopy　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 2010 - 2012
  YAMAGUCHI Shoichi; HOSOI Haruko, The Institute of Physical and Chemical Research
  Grant amount(Total)：19890000, Direct funding：15300000, Indirect funding：4590000
  I show that a newly-developed second-order nonlinear spectroscopic technique allows me to draw topology diagrams of such proteins. Uniquely, one can determine "up" versus "down" alignment of molecules on a surface using this second-order nonlinear spectroscopy. In my novel but simple approach, an "alignment indicator" is introduced to each segment of a protein before immobilizing the protein on a glass surface, and the up versus down alignment of each segment is nonlinear-spectroscopically determined. This approach is very powerful and useful for proteins to which neither X-ray nor NMR is applicable.
  Grant number：22350014
• Study of complex molecular systems by advanced molecular spectroscopy　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research on Priority Areas, 2007 - 2011
  TAHARA Tahei; TAKEUCHI Satoshi; YAMAGUCHI Shoichi; ISHII Kunihiko; HOSOI Haruko; MORITA Akihiro; ASANO Motoko, The Institute of Physical and Chemical Research
  Grant amount(Total)：81600000, Direct funding：81600000
  We studied complex molecular systems using the most advanced spectroscopy. With ultrafast spectroscopy, we elucidated the multi-dimensional reaction coordinate of isomeriataion of cis-stilbene, clarified the mechanism of the ultrafast structural chang of Cu(I) complexes, and succeeded in tracking nuclear motion along the isomerization coordinate of a prototypical cyanine dye. With interface-selective nonlinear spectroscopy, we developed heterodyne-detected electronic and vibrational sum-frequency generation spectroscopies and obtained a number of new insights into fundamental phenomena at water interfaces including the interface of model membranes. For correlation spectroscopy, we combined fluorescence intensity correlation measurements and fluorescence lifetime measurements to develop a new method that has a very high potential for the study of structural fluctuation of biopolymers.
  Grant number：19056009
• Exploring new molecular science at interfaces by novel nonlinear spectroscopy　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (A), 2007 - 2009
  TAHARA Tahei; YAMAGUCHI Shoichi; ISHII Kunihiko; WATANABE Hidekazu, The Institute of Physical and Chemical Research
  Grant amount(Total)：47970000, Direct funding：36900000, Indirect funding：11070000
  On the basis of our original ESFG spectroscopy, we have developed a group of new interface-selective nonlinear electronic and vibrational spectroscopies such as time-resolved ESFG (TR-ESFG), 4^-order nonlinear Raman (X^<(4)> Raman), heterodyne-detected ESFG (HD-ESFG) and heterodyne-detected VSFG (HD-VSFG). Using these new methods, we studied fundamental problems of water interfaces. We clarified the effective polarity, surface denaturation of a protein, ultrafast dynamics of dye molecule, novel hydrogen bonding at the water interfaces, and observed flip-flop of water molecules at the charged water interfaces.
  Grant number：19205005
• DNAの二次構造転移の観測　　　　　　　　　　　　　　　
  2003 - 2005
  Grant amount(Total)：3800000, Direct funding：3800000
  Grant number：15750023
• Real-time observation and control of the condensed-phase photochemical dynamics using optimized ultrashort optical pulses　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 2001 - 2003
  TAHARA Tahei; YAMAGUCHI Shoichi; TAKEUCHI Satoshi
  Grant amount(Total)：14200000, Direct funding：14200000
  We studied photochemical dynamics in the condensed phase by using femtosecond electronic spectroscopy, picosecond time-resolved vibrational spectroscopy, and pump-probe spectroscopy that enables us to observe nuclear wavepacket motions. Major outcomes are followings.
  1.Ultrafast photodissociation of diphenylcyclopropenone was studied by pump-probe spectroscopy based on 10-fs pulses. The wavepacket motion of the S_2 state was observed, and its relevance to the reaction coordinate was discussed. Time-resolved time-domain Raman spectroscopy was developed. With this method, we observed Raman-active low-frequency vibrations of trans-stilbene and binapthyl in the excited state in the time domain.
  2.Photo-induced proton transfer of the 7-azaindole dimer and photoisomerization of trans-azobenzene were studied by femtosecond time-resolved spectroscopy, and their reaction mechanisms were clarified. Ultrafast fluorescence dynamics of a model compound of chromophore of Green Fluorescence Protein was investigated, and its ultrafast radiationless relaxation process was discussed.
  3.Picosecond time-resolved Raman spectra of water were measured under the resonance condition with the electronic transition of the solvated electron. It was discovered that the water molecules that solvate the electron give rise to strong resonance Raman scattering.
  4.Fluorescence up-conversion microscope was developed. It simultaneously achieved femtosecond time-resolution and sub-micron space-resolution in fluorescence measurements for the first time. A new femtosecond fluorescence imaging technique was developed, which enabled us to observe fluorescence intensity as a time-wavelength two-dimensional image. An apparatus for multi-channel detection of two-photon absorption was developed. Precise two photon absorption spectra of retinal and C_<60> were measured.
  Grant number：13440183
• 熱による誘電場操作と化学反応の制御　　　　　　　　　　　　　　　
  1996 - 1998
  Grant amount(Total)：35000000, Direct funding：35000000
  Grant number：08404038
• フェムト秒円2色分光計の製作とその軸性不斉分子の光ラセミ化測定への応用　　　　　　　　　　　　　　　
  1996 - 1996
  Grant amount(Total)：1200000, Direct funding：1200000
  Grant number：08740447

• 電子スペクトル測定方法および装置　　　　　　　　　　　　　　　
  Patent right
  Patent/Registration no：特許第4538301号
• 一重項酸素発生量子効率の測定方法および化合物の耐光性試験方法　　　　　　　　　　　　　　　
  Patent right
• チタニルフタロシアニン化合物およびそれを用いた電子写真感光体　　　　　　　　　　　　　　　
  Patent right
• 変調・高速時間分解分光法　　　　　　　　　　　　　　　
  Patent right
  Patent/Registration no：特許第3661501号
• 濃度測定装置　　　　　　　　　　　　　　　
  Patent right

• 東葉筑玉合同セミナー　　　　　　　　　　　　　　　
  Planning etc
  Saitama University, 12 May 2023 - 12 May 2023
  Competition etc
• Saitama SFG Colloquium II　　　　　　　　　　　　　　　
  Planning etc
  Saitama University, 22 Nov. 2022 - 22 Nov. 2022
  Competition etc
• シンポジウム「氷の分子科学 II」　　　　　　　　　　　　　　　
  Planning etc
  Saitama University, 09 Oct. 2019 - 09 Oct. 2019
  Competition etc
• The 8th SFG Symposium　　　　　　　　　　　　　　　
  Planning etc
  Saitama University, JA Kyosai Saitama Building, 26 Oct. 2018 - 27 Oct. 2018
  Competition etc, Supported by Kajima Foundation
• さいたま分光セミナー　　　　　　　　　　　　　　　
  Planning etc
  Saitama University, 16 May 2018 - 16 May 2018
  Competition etc
• 日本分光学会先端レーザー分光部会シンポジウム「若手研究者たちによる先端的レーザー分光シンポジウム」　　　　　　　　　　　　　　　
  Planning etc
  Saitama University, 02 Dec. 2017 - 02 Dec. 2017
  Competition etc
• Saitama SFG Colloquium　　　　　　　　　　　　　　　
  Planning etc
  Saitama University, 12 Oct. 2017 - 12 Oct. 2017
  Competition etc
• 新学術領域柔らかな分子系ワークショップ「氷の分子科学」　　　　　　　　　　　　　　　
  Planning etc
  13 May 2017 - 13 May 2017
  Competition etc
• 日本分光学会先端レーザー分光部会シンポジウム「若手研究者たちによる先端的レーザー分光シンポジウム」　　　　　　　　　　　　　　　
  Planning etc
  RIKEN, 03 Dec. 2013 - 03 Dec. 2013
  Competition etc
• 理研・特定領域研究高次系分子科学・SFG 研究会合同シンポジウム「表面・界面を観る非線形分光の新しい展開」　　　　　　　　　　　　　　　
  Planning etc
  23 Mar. 2009 - 24 Mar. 2009
  Competition etc
• William F. Meggars Award Session　　　　　　　　　　　　　　　
  Planning etc
  35th annual Federation of Analytical Chemistry and Spectroscopy Societies (FACSS 2008), Reno, Nevada, 01 Oct. 2008 - 01 Oct. 2008
  Academic society etc, Award Commemorative Session for Professor Taka-aki Ishibashi

• Taking in two cats as foster parents　　　　　　　　　　　　　　　
  others
  27 Sep. 2025 - Present
  Others

• サイ・テクこらむ 知と技の発信 222　　　　　　　　　　　　　　　
  Myself, 15 Jul. 2015, [Paper]
  科学の面白さと正しさ
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  昨年，STAP細胞の研究不正が大きな騒動になりました．その騒動から，はっきりと分かったことがあります．それは，正しくない科学であっても人はあれほど面白がることができる，ということです．
  
  成果発表から不正が疑われ始めるまでの間，専門家から門外漢まで，ほとんどの人が研究内容の面白さを手放しで賞賛していました．科学研究において，「面白いかどうか」はその価値を決める最も重要なファクターと考えられています．「あなたの研究はとても面白い」と言われて喜ばない研究者はいません．逆に，「正しいが面白くない研究」は研究者にとって侮辱の言葉とされています．そして，あの騒動を経ても，科学の「面白さ至上主義」は微動だにしていません．科学としての正しさは当然の前提条件であって，面白さや，それに加えて新規性，有用性を追求することが科学研究の営みであり続けています．
  
  しかし，単なる前提の当たり前のものとして扱えるほど，科学的に「正しい」ということは簡単なものではありません．実際に，騒動の渦中には，世界的に著名な超一流と言われる科学者が複数いました．超一流であるにもかかわらず，研究内容が正しくないということを事前に見抜くことはできませんでした．一方で，不正の発見に主要な貢献をしたのは，当該分野とその周辺の多数の研究者や関係者でした．そのような方々のほとんどは，恐らく超一流とは呼ばれていない普通の人と予想されます．このことは大変示唆に富んでいます．科学的な正しさを保つのに必要なのは，少数の超一流研究者でなはく，多数の普通の人々です．正しいかどうかを見極めるには，頂にいる天才数人よりも，裾野の凡人数万人の方が遥かに有効です．頂をより高く，真理により近づけるためには，広い裾野が必要なのです．
  
  これまで積み上げられてきたものが正しいならば，正しくないものが新しく面白いとされて持て囃されることが稀に起こるのは致し方ないことでしょう．ただ正しいだけのものが，当たり前のつまらないものと見なされるのも，ある意味当然のことです．しかし，正しいかどうか，ということは決して蔑ろにされてはいけません．面白いかどうか，役に立つかどうか，新しいかどうか，すごいかどうか，ということだけに過剰に重きを置いた研究の成果は，短命に終わるに違いありません．
  
  真理を愚直に追求する多数の普通の研究者が，正しい科学を生き残らせてその発展を支えています．
  ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿