255 citations · 944 across the 31 of their papers we have counts for
31 papers
Ultrafast Optical Control of Multi-Valley States in 2D SnS
Arqum Hashmi, M. Umar Farooq, Mizuki Tani +3
We theoretically study the ultrafast optical control of multiple valley states in two-dimensional (2D) tin sulfide (SnS) monolayers, a member of the layered group-IV monochalcogeni…
Electron recollisional excitation of OCS in phase-locked intense laser fields
Tomoyuki Endo, Tomohito Otobe, Ryuji Itakura
Photoelectron-photoion coincidence momentum imaging has been performed to investigate excitation processes on dissociative ionization of OCS, OCS OCS + e OC + S…
Strong Field Optical Hall Effect in 2D Weyl Semimetal
M. Umar Farooq, Arqum Hashmi, Mizuki Tani +4
The study of interplay between the geometric nature of Bloch electrons and transverse responses under strong field offers new opportunities for optoelectronic applications. Here, w…
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…
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 \…
Molecular dynamics study of electronic temperature effects on the laser ablation of silicon
Ryo Kobayashi, Tomohito Otobe
The molecular dynamics (MD) approach is an effective tool for investigating atomistic dynamical phenomena at the surface of materials under strong laser irradiation. Therefore, num…