activity
19962023
most citedA real-space, rela-time method for the dielectric function

403 citations · 3.4k across the 79 of their papers we have counts for

collaborators

79 papers

cond-mat.mtrl-sci2023★ 11 cited

Subcycle control of valley-selective excitation via dynamical Franz-Keldysh effect in WSe monolayer

Shunsuke Yamada, Kazuhiro Yabana, Tomohito Otobe

This study performed first-principles calculations based on the time-dependent density functional theory to control the valley degree of freedom relating to the dynamical Franz-Kel…

physics.optics2023★ 4 cited

Enhancement of valley selective excitation by a linearly polarized two-color laser pulse

Arqum Hashmi, Shunsuke Yamada, Kazuhiro Yabana +1

Here we proposed the valley selective excitations via a two-color (\ensuremathω + \ensuremath{2ω}) laser field, made by superimposing two linearly polarized pulses at frequencies \…

cond-mat.mtrl-sci2022★ 13 cited

Propagation effects in high-harmonic generation from dielectric thin films

Shunsuke Yamada, Tomohito Otobe, David Freeman +2

Theoretical investigation is conducted of high-order harmonic generation (HHG) in silicon thin films to elucidate the effect of light propagation in reflected and transmitted waves…

physics.optics2022★ 3 cited

Electron spill-out effect on third-order optical nonlinearity of metallic nanostructure

Takashi Takeuchi, Kazuhiro Yabana

Over the last three decades, plasmonics using metallic nanostructures has become central to nanophotonics research. Recently, its targets have been extended to nonlinear optical ph…

physics.optics2022

Infrared-Shielding of Plasmonic Random Metasurface Constructed by Cesium-Doped Tungsten Bronze

Tomohiro Yoshida, Takashi Takeuchi, Kazuhiro Yabana

The heat-shielding properties of random metasurface, composed of spherical or spheroidal nanoparticles with random displacements and/or random deformation, were theoretically inves…

physics.optics2022★ 2 cited

First-principles method for nonlinear light propagation at oblique incidence

Mitsuharu Uemoto, Kazuhiro Yabana

We have developed a computational method to describe the nonlinear light propagation of an intense and ultrashort pulse at oblique incidence on a flat surface. In the method, coupl…