| Project/Area Number |
10554032
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Physical chemistry
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| Research Institution | Himeji Institute of Technology |
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Principal Investigator |
TAKAGI Yoshihiro Himeji Institute of Technology, Department of Material Science, Professor, 理学部・物質化学科, 教授 (80106161)
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| Co-Investigator(Kenkyū-buntansha) |
ADACHI Satoru Himeji Institute of Technology, Department of Material Science, Research Associate, 理学部・物質化学科, 助手 (10221722)
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| Project Period (FY) |
1998 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥10,900,000 (Direct Cost: ¥10,900,000)
Fiscal Year 1999: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1998: ¥8,500,000 (Direct Cost: ¥8,500,000)
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| Keywords | ultrashort pulsed laser / sampling / pump-probe / synchrotron radiation / フェムト秒レーザー / ポンプ・プローブ分光 / 時間分解分光法 |
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| Research Abstract |
We have developed a subpicosecond non-degenerate pump-probe spectrometer based on the optical sampling technique using a combination of asynchronous tunable femtosecond lasers. Owing to its simple instrumentation time evolution of subpicosecond to nanosecond excited molecular processes in solution and of exciton relaxation processes in semiconductor multiple quantum wells has been detected on an oscilloscope by an effective time base magnification of 760,000 times. Fast acquisition of the temporal profiles and ease of wavelength scanning allowed compilation of time-resolved absorption and excitation spectra. A possible extention of the spectrometer with one of the light sources being a synchrotron radiation instead of the femtosecond laser is discussed.
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