2009 Fiscal Year Final Research Report
Exploring new molecular science at interfaces by novel nonlinear spectroscopy
| Project/Area Number |
19205005
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
TAHARA Tahei The Institute of Physical and Chemical Research, 田原分子分光研究室, 主任研究員 (60217164)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAGUCHI Shoichi 独立行政法人理化学研究所, 田原分子分光研究室, 専任研究員 (60250239)
ISHII Kunihiko 独立行政法人理化学研究所, 田原分子分光研究室, 研究員 (80391853)
WATANABE Hidekazu 独立行政法人理化学研究所, 田原分子分光研究室, 協力研究員 (80301787)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 非線形分光 / 界面 / フェムト秒 / 超高速分光 / 電子スペクトル / 振動スペクトル / 先端分光計測 |
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| Research Abstract |
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^<th>-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.
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