| Project/Area Number |
25620012
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
HORIO Takuya 京都大学, 理学(系)研究科(研究院), 助教 (40443022)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 超高速分光 / 励起状態ダイナミクス / 光電子分光 / 真空紫外極短パルス / イメージング / 反応動力学 / 極短パルス / 真空紫外光 / 光電子イメージング / 極短光パルス / 真空紫外 |
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| Outline of Final Research Achievements |
Using a Ti:Sa amplifier and filamentation non-linear optics, we have succeeded in simultaneous generation of ultrashort pulses at the center wavelengths of 264, 198, 159, and 133 nm. Transform-limited pulse widths estimated from the observed spectra are found to be less than 10 fs. We measured cross-correlation traces between 198 and 159 nm, and 198 and 133 nm, and found that the observed traces exhibit a Gaussian distribution with a full width at half maximum of 18 fs. The sub-20 fs time-resolution is unprecedented in the corresponding wavelength regions. We have successfully applied this light source to time-resolved photoelectron imaging and observed ultrafast photodissociation reaction of carbon disulfide in real time.
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