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20192023
most citedInterband resonant high-harmonic generation by valley polarized electron-hole pairs

146 citations · 273 across the 10 of their papers we have counts for

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physics.optics2021★ 1 cited

Effect of incoherent electron-hole pairs on high harmonic generation in an atomically thin semiconductor

Kohei Nagai, Kento Uchida, Satoshi Kusaba +3

High harmonic generation (HHG) in solids reflects the underlying nonperturbative nonlinear dynamics of electrons in a strong light field and is a powerful tool for ultrafast spectr…

physics.optics2020★ 47 cited

Visualization of two-dimensional transition dipole moment texture in momentum space using high-harmonic generation spectroscopy

K. Uchida, V. Pareek, K. Nagai +2

Highly nonlinear optical phenomena can provide access to properties of electronic systems which are otherwise difficult to access through conventional linear optical spectroscopies…

physics.optics2020★ 46 cited

Control of high-harmonic generation by tuning the electronic structure and carrier injection

Hiroyuki Nishidome, Kohei Nagai, Kento Uchida +4

High-harmonic generation (HHG), which is generation of multiple optical harmonic light, is an unconventional nonlinear optical phenomenon beyond perturbation regime. HHG, which was…

physics.optics2020

Dynamical symmetry of strongly light-driven electronic system in crystalline solids

Kohei Nagai, Kento Uchida, Naotaka Yoshikawa +3

The Floquet state, which is a periodically and intensely light driven quantum state in solids, has been attracting attention as a novel state that is coherently controllable on an…

physics.optics2019★ 4 cited

Inherent Limit to Coherent Phonon Generation under Non-Resonant Light Field Driving

Kento Uchida, Kohei Nagai, Naotaka Yoshikawa +1

Coherent manipulation of quasi-particles is a crucial method to realize ultrafast switching of the relating macroscopic order. In this letter, we studied coherent phonon generation…