5 papers
Microscopic Origin of Dephasing in Solids from First-Principles Electron-Phonon Interactions
Atsushi Yamada, Kazuhiro Yabana
Electron-phonon interactions provide a microscopic origin of effective dephasing in solids within real -time TDDFT via a time-domain Williams-Lax framework. In metals, Drude -like…
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…
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…
Wide-bandgap optical materials for high-harmonics generation at the nanoscale
Albert Mathew, Sergey Kruk, Shunsuke Yamada +2
High-order harmonics generation (HHG) is the only process that enables table-top-size sources of extreme-ultraviolet (XUV) light. The HHG process typically involves light interacti…
Interaction of intense ultrashort laser pulses with solid targets: A systematic analysis using first-principles calculations
Atsushi Yamada, Kazuhiro Yabana
Intense ultrashort laser pulse irradiation of solid targets was systematically investigated at the first-principles level, both theoretically and computationally. In the method, th…