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]
Scientific journal
A new rigid non-polarizable model for semi-heavy water: TIP4P/2005-SHWTetsuyuki Takayama; Takuhiro Otosu; Shoichi Yamaguchi
The Journal of Chemical Physics,
Volume：161,
Number：23, Dec. 2024,
[Reviewed]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, Scientific journal
DOI：https://doi.org/10.1063/5.0240271DOI ID：10.1063/5.0240271,
ISSN：0021-9606,
eISSN：1089-7690 Theoretical and experimental OD-stretch vibrational spectroscopy of heavy waterTetsuyuki Takayama; Takuhiro Otosu; Shoichi Yamaguchi
The Journal of Chemical Physics,
Volume：160,
Number：10, Apr. 2024,
[Reviewed]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, Scientific journal
DOI：https://doi.org/10.1063/5.0200623DOI 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]
Scientific journal
Complex phase of the nonresonant background in sum frequency generation spectroscopyKorenobu Matsuzaki; Shoichi Yamaguchi; Tahei Tahara
The Journal of Chemical Physics,
Volume：159,
Number：22, Dec. 2023
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, Scientific journal
DOI：https://doi.org/10.1063/5.0169712DOI ID：10.1063/5.0169712,
ISSN：0021-9606,
eISSN：1089-7690 Appraisal of TIP4P-type models at water surfaceShoichi Yamaguchi; Tetsuyuki Takayama; Takuhiro Otosu
The Journal of Chemical Physics,
Volume：159,
Number：17, Nov. 2023
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, Scientific journal
DOI：https://doi.org/10.1063/5.0171999DOI ID：10.1063/5.0171999,
ISSN：0021-9606,
eISSN：1089-7690 Transferability of vibrational spectroscopic map from TIP4P to TIP4P-like water modelsTetsuyuki Takayama; Takuhiro Otosu; Shoichi Yamaguchi
The Journal of Chemical Physics,
Volume：158,
Number：13, Apr. 2023
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, Scientific journal
DOI：https://doi.org/10.1063/5.0146084DOI 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, Oct. 2022,
[]DOI：https://doi.org/10.1021/acs.jpclett.2c02533DOI 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, Oct. 2022,
[]DOI：https://doi.org/10.1021/acs.jpcc.2c05133DOI ID：10.1021/acs.jpcc.2c05133,
ORCID：120088265 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
DOI：https://doi.org/10.1021/acs.jpcb.1c08581DOI ID：10.1021/acs.jpcb.1c08581,
ISSN：1520-6106,
eISSN：1520-5207,
Web of Science ID：WOS:000746682000001 Progress in phase-sensitive sum frequency generation spectroscopyShoichi Yamaguchi; Takuhiro Otosu
Physical Chemistry Chemical Physics,
Volume：23,
Number：34,
First page：18253,
Last page：18267, 2021
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)
DOI：https://doi.org/10.1039/d1cp01994eDOI ID：10.1039/d1cp01994e,
ISSN：1463-9076,
eISSN：1463-9084 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
DOI：https://doi.org/10.1021/acs.jpclett.0c02644DOI 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
DOI：https://doi.org/10.1039/d0cp02618bDOI ID：10.1039/d0cp02618b,
ISSN：1463-9076,
eISSN：1463-9084,
Web of Science ID：WOS:000556485900003 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, []
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
DOI：https://doi.org/10.1039/c9cp05833hDOI ID：10.1039/c9cp05833h,
ISSN：1463-9076,
eISSN：1463-9084,
Web of Science ID：WOS:000509371400030 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, Jul. 2019
DOI：https://doi.org/10.1063/1.5103221DOI 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
DOI：https://doi.org/10.1016/j.chemphys.2019.03.005DOI 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
DOI：https://doi.org/10.1021/acs.jpcb.8b08614DOI ID：10.1021/acs.jpcb.8b08614,
ISSN：1520-6106,
Web of Science ID：WOS:000451101100006 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,
[]American Chemical Society
DOI：https://doi.org/10.1021/acs.jpcb.8b01176DOI 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,
[]Elsevier B.V.
DOI：https://doi.org/10.1016/j.cplett.2018.01.026DOI ID：10.1016/j.cplett.2018.01.026,
ISSN：0009-2614,
SCOPUS ID：85040701289 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,
[]DOI：https://doi.org/10.1021/acs.jpclett.7b02057DOI 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,
[]DOI：https://doi.org/10.1021/acs.jpclett.7b02198DOI ID：10.1021/acs.jpclett.7b02198,
ISSN：1948-7185,
ORCID：40809659,
Web of Science ID：WOS:000413798300010 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, Jul. 2017,
[]DOI：https://doi.org/10.1063/1.4985871DOI 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, []
ISSN：0065-7727, 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,
[]DOI：https://doi.org/10.1021/acs.jpclett.7b00312DOI 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,
[]DOI：https://doi.org/10.1021/acs.jpcc.6b09229DOI 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, Oct. 2016,
[]DOI：https://doi.org/10.1063/1.4965437DOI ID：10.1063/1.4965437,
ISSN：0021-9606,
eISSN：1089-7690,
ORCID：29445417,
Web of Science ID：WOS:000387586200058 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,
[]DOI：https://doi.org/10.1002/anie.201603676DOI 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,
[]DOI：https://doi.org/10.1021/acs.jpclett.6b00657DOI 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,
[]DOI：https://doi.org/10.1021/jacs.6b02171DOI 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,
[]DOI：https://doi.org/10.1021/acs.jpcc.6b03275DOI 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,
[]DOI：https://doi.org/10.1021/acs.jpclett.6b00701DOI ID：10.1021/acs.jpclett.6b00701,
ISSN：1948-7185,
ORCID：28499889,
Web of Science ID：WOS:000376421200010 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,
[]DOI：https://doi.org/10.1063/1.4931485DOI 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, Jul. 2015,
[]DOI：https://doi.org/10.1063/1.4927067DOI 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,
[]DOI：https://doi.org/10.1021/acs.jpcc.5b02375DOI 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, Jun. 2015,
[]DOI：https://doi.org/10.1063/1.4918644DOI ID：10.1063/1.4918644,
ISSN：0021-9606,
eISSN：1089-7690,
ORCID：28499892,
Web of Science ID：WOS:000355931800035 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,
[]DOI：https://doi.org/10.1039/c5cp04264jDOI 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,
[]DOI：https://doi.org/10.1063/1.4897265DOI 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,
[]DOI：https://doi.org/10.1021/ja412952yDOI 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,
[]DOI：https://doi.org/10.1021/jz500107eDOI 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)
DOI：https://doi.org/10.1364/up.2014.07.mon.p1.27DOI ID：10.1364/up.2014.07.mon.p1.27,
ISSN：2162-2701,
SCOPUS ID：85087192595 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,
[]English
DOI：https://doi.org/10.1063/1.4826095DOI 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,
[]English
DOI：https://doi.org/10.1021/jz400829kDOI 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/jp402674uDOI 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/10.1063/1.4802916DOI 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/10.1063/1.4790407DOI 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-040412-110138DOI 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/10.1063/1.4758805DOI 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/10.1063/1.4747828DOI 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.20120051DOI 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/ja300658hDOI 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/10.1063/1.3662136DOI 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/ja2053754DOI ID：10.1021/ja2053754,
ISSN：0002-7863,
ORCID：28499914,
Web of Science ID：WOS:000296678200035 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/10.1063/1.3586811DOI 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/jp1113174DOI 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/jp110456tDOI 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/jz101142mDOI 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/ja104327tDOI 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/ja910914gDOI 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/10.1063/1.3372620DOI 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/10.1063/1.3372620DOI 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/b908097jDOI 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/10.1063/1.3135147DOI 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.200901094DOI 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.2078DOI 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/jp8061288DOI 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/10.1063/1.2981179DOI 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/10.1063/1.2981179DOI ID：10.1063/1.2981179,
ISSN：0021-9606,
ORCID：28499924,
Web of Science ID：WOS:000259883600002 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.200710027DOI 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/jp711628uDOI 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/10.1063/1.2841023DOI ID：10.1063/1.2841023,
ISSN：0021-9606,
ORCID：28499923,
Web of Science ID：WOS:000254292500065 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.2007.4391513DOI 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.200701609DOI 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/10.1063/1.2375093DOI 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/jp055027pDOI 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/B978-044452821-6/50036-8DOI 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/jp0542064DOI 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/jp050828dDOI 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.2005.618DOI 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/jp045306xDOI 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.2004.03.146DOI 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
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)00984-9DOI 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/ja016692oDOI 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)00470-1DOI：https://doi.org/10.1016/s1010-6030(01)00470-1DOI 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/jp0019557DOI 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.39.6107DOI 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)00475-9DOI：https://doi.org/10.1016/s0009-2614(00)00475-9DOI 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/jp993551oDOI 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/jp991892wDOI 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/10.1155/1999/63925DOI 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/10.1063/1.476692DOI 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)00234-6DOI：https://doi.org/10.1016/s0009-2614(98)00234-6DOI 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)09178-5DOI 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.76.1513DOI 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/10.1366/0003702953965434DOI 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)00832-9DOI 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/10.1063/1.1143951DOI ID：10.1063/1.1143951,
ISSN：0034-6748,
ORCID：28499950,
Web of Science ID：WOS:A1993LR97900006
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, Book review
DOI：https://doi.org/10.1246/cl.200539DOI ID：10.1246/cl.200539,
ISSN：0366-7022,
eISSN：1348-0715,
Web of Science ID：WOS:000598377200011 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, Others
DOI：https://doi.org/10.1063/1.5126062DOI ID：10.1063/1.5126062,
ISSN：0021-9606,
eISSN：1089-7690,
Web of Science ID：WOS:000542728800001 Two-Dimensional Fluorescence Lifetime Correlation Spectroscopy: Concepts and Applications Takuhiro Otosu; Shoichi Yamaguchi
MOLECULES,
Volume：23,
Number：11, Nov. 2018
English, Book review
DOI：https://doi.org/10.3390/molecules23112972DOI ID：10.3390/molecules23112972,
eISSN：1420-3049,
Web of Science ID：WOS:000451641900244 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, Book review
DOI：https://doi.org/10.1021/acs.chemrev.6b00728DOI ID：10.1021/acs.chemrev.6b00728,
ISSN：0009-2665,
eISSN：1520-6890,
Web of Science ID：WOS:000408519200003 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, Summary international conference
ISSN：0065-7727, Web of Science ID：WOS:000431460201108
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_75DOI ID：10.1007/978-3-319-13242-6_75,
ISSN：0930-8989,
Web of Science ID：WOS:000357738800075 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><sup>(2)</sup>|<sup>2</sup>. Recently, we developed multiplex heterodyne-detected (HD-) VSFG spectroscopy. This HD-VSFG spectroscopy enables us to measure the imaginary part of <I>χ</I><sup>(2)</sup>, Im<I>χ</I><sup>(2)</sup>, 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.35.662DOI ID：10.1380/jsssj.35.662,
ISSN：0388-5321,
CiNii Articles ID：130004785031 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, 10 Aug. 2011
Japanese
ISSN：0389-6625, CiNii Articles ID：10029467817, CiNii Books ID：AN00080324
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, Summary international conference
ISSN：0065-7727, Web of Science ID：WOS:000271775109234
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, Summary international conference
ISSN：0065-7727, Web of Science ID：WOS:000207722807310
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, Summary international conference
ISSN：0065-7727, Web of Science ID：WOS:000187062501700
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：22H02027
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：11070000On 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：19205005DNA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 |
mail.saitama-u.ac.jp