173 citations · 364 across the 10 of their papers we have counts for
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Nonlinear dynamics of electromagnetic field and valley polarization in WSe monolayer
Arqum Hashmi, Shunsuke Yamada, Atsushi Yamada +2
Linear and nonlinear optical response of WSe monolayer is investigated by two-dimensional Maxwell plus time-dependent density functional theory with spin-orbit interaction. B…
Valley polarization control in WSe2 monolayer by a single-cycle laser pulse
Arqum Hashmi, Shunsuke Yamada, Atsushi Yamada +2
Abstract The valley degree of freedom in two-dimensional materials provides an opportunity to extend the functionalities of valleytronics devices. Very short valley lifetimes deman…
High order harmonic generation in semiconductors driven at near- and mid-IR wavelengths
David Freeman, Shunsuke Yamada, Atsushi Yamada +2
We study high order harmonics generation (HHG) in crystalline silicon and diamond subjected to near and mid-infrared laser pulses. We employ time-dependent density functional theor…
Determining the optimum thickness for high harmonic generation from nanoscale thin films: an ab initio computational study
Shunsuke Yamada, Kazuhiro Yabana
We theoretically investigate high harmonic generation (HHG) from silicon thin films with thicknesses from a few atomic layers to a few hundreds of nanometers, to determine the most…