| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
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| Outline of Final Research Achievements |
A theoretical framework of laser-assisted electron scattering induced by single-cycle laser pulses and a protocol of THz-wave-assisted electron diffraction method were developed, and their feasibilities were confirmed by numerical simulations. In order to demonstrate THz-wave-assisted electron diffraction method experimentally, optical systems for the tilted-pulse-front pumping method and the electro-optical sampling method were constructed. An apparatus for THz-assisted electron scattering was constructed by incorporating the optical systems into a laser-assisted electron scattering apparatus. Furthermore, a hollow-core-fiber type pulse compressor was developed for generation of few-cycle laser pulses in the near-infrared region, and few-cycle laser assisted electron scattering processes were observed for the first time.
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