255 citations · 1.1k across the 24 of their papers we have counts for
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Strong-Field Electron Dynamics in Solids
Kenichi L. Ishikawa, Yasushi Shinohara, Takeshi Sato +1
Solid-state materials have recently emerged as a new stage of strong-field physics and attosecond science. The mechanism of the electron dynamics driven by an ultrashort intense la…
Nonlinear electronic excitations in crystalline solids using meta-generalized gradient approximation and hybrid functional in time-dependent density functional theory
Shunsuke A. Sato, Yasutaka Taniguchi, Yasushi Shinohara +1
We develop numerical methods to calculate electron dynamics in crystalline solids in real-time time-dependent density functional theory employing exchange-correlation potentials wh…
Femtosecond time-resolved dynamical Franz-Keldysh effect
T. Otobe, Y. Shinohara, S. A. Sato +1
We theoretically investigate the dynamical Franz-Keldysh effect in femtosecond time resolution, that is, the time-dependent modulation of a dielectric function at around the band g…
Dielectric response of laser-excited silicon at finite electron temperature
S. A. Sato, Y. Shinohara, T. Otobe +1
We calculate the dielectric response of excited crystalline silicon in electron thermal equilibrium by adiabatic time-dependent density functional theory (TDDFT) to model the respo…
First-principles simulation of the optical response of bulk and thin-film α-quartz irradiated with an ultrashort intense laser pulse
Kyung-Min Lee, Chul Min Kim, Shunsuke A. Sato +4
A computational method based on a first-principles multiscale simulation has been used for calculating the optical response and the ablation threshold of an optical material irradi…
Dielectric response of laser-excited silicon
S. A. Sato, K. Yabana, Y. Shinohara +2
We calculate the dielectric response of crystalline silicon following irradiation by a high-intensity laser pulse, modeling the dynamics by time-dependent density functional theory…
Nonadiabatic generation of coherent phonons
Y. Shinohara, S. A. Sato, K. Yabana +3
The time-dependent density functional theory (TDDFT) is the leading computationally feasible theory to treat excitations by strong electromagnetic fields. Here the theory is applie…
Ab initio theory of coherent phonon generation by laser excitation
Y. Shinohara, Y. Kawashita, K. Yabana +3
We show that time-dependent density functional theory (TDDFT) is applicable to coherent optical phonon generation by intense laser pulses in solids. The two mechanisms invoked in p…