| Budget Amount *help |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2018: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
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| Outline of Final Research Achievements |
In the present work, the signal-to-noise ratio was improved for direct observation of the intermolecular thermal reaction. Optical components fixed on a rotational mechanical stage were inserted in the optical path as actuator for PC control to stabilize the intensity of the visible 5-fs pulsed laser. Thus, the noise signal was decreased by 40% compared with the case not using the actuator, which has enabled us to perform spectroscopy of molecular vibration in the electronic ground state using a low concentration solution. In addition, the visible 5-fs laser system for the transient state spectroscopy was improved to keep the stability of the laser over several days. The improved visible 5-fs pulsed laser was used to study transient process of alcohol polycondensation reaction by measuring real-time change of molecular vibration frequency.
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