Research field (1)：
Semiconductors, optical and atomic physics
Research theme for competitive and other funds (5)：
2022 - 2025 Characterization and understanding of mechanical properties using high-harmonics generation of infrared pulses
2022 - 2025 High harmonic spectroscopy and ultrafast control of material using the polarization gating
2019 - 2022 High harmonic spectroscopy of non-equilibrium electron dynamics in phase change materials
2018 - 2020 Ultrafast control of phase in strong correlated electronic system by intense mid-infrared light
2017 - 2019 量子ホール系における位相制御テラヘルツ光を用いた電子状態の量子制御
Papers (22)：
K. Uchida, K. Tanaka. High harmonic Mach-Zehnder interferometer for probing sub-laser-cycle electron dynamics in solids. Optica. 2024. 11. 8. 1130-1130
K. S. Takeda, K. Uchida, K. Nagai, S. Kusaba, S. Takahashi, K. Tanaka. Ultrafast Electron-Electron Scattering in Metallic Phase of 2H-NbSe2 Probed by High Harmonic Generation. Physical Review Letters. 2024. 132. 18. 186901
Hiroyuki Nishidome, Mikito Omoto, Kohei Nagai, Kento Uchida, Yuta Murakami, Junko Eda, Hitomi Okubo, Kan Ueji, Yohei Yomogida, Junichiro Kono, et al. Influence of Laser Intensity and Location of the Fermi Level on Tunneling Processes for High-Harmonic Generation in Arrayed Semiconducting Carbon Nanotubes. ACS Photonics. 2023
Kohei Nagai, Kento Uchida, Satoshi Kusaba, Takahiko Endo, Yasumitsu Miyata, Koichiro Tanaka. Effect of incoherent electron-hole pairs on high harmonic generation in an atomically thin semiconductor. Physical Review Research. 2023. 5. 4
Kento Uchida, Satoshi Kusaba, Kohei Nagai, Tatsuhiko N. Ikeda, Koichiro Tanaka. Diabatic and adiabatic transitions between Floquet states imprinted in coherent exciton emission in monolayer WSe 2. Science Advances. 2022. 8. 51
高階君佳, 内田健人, 田中耕一郎, 松永哲也, 松永哲也, 御手洗容子, 金島圭佑, 武田淳, 片山郁文. Measurement of Anisotropy in the Electronic States of Metallic Titanium using Optical Harmonics. 応用物理学会春季学術講演会講演予稿集(CD-ROM). 2021. 68th
