7 citations · 7 across the 5 of their papers we have counts for
5 papers
Ultrafast Energy Absorption in Silicon Controlled by Two-Color Double Pulses
Eiyu S. Gushiken, Mizuki Tani, Hiroki Katow +1
We theoretically show that energy absorption in crystalline silicon can be controlled by two-color femtosecond double-pulse irradiation, in which two temporally separated pulses wi…
Exact solutions, spectrum properties, and hierarchical structures of the multiple temperature model
Hiroki Katow, Kenichi L. Ishikawa
Recent developments of ultrafast laser pulse techniques enable us to study the subpicosecond scale dynamics out of thermal equilibrium. Multiple temperature models are frequently u…
First Principles Study of the Optical Dipole Trap for Two-Dimensional Excitons in Graphane
Hiroki Katow, Ryosuke Akashi, Yoshiyuki Miyamoto +1
Recent studies on excitons in two-dimensional materials have been widely conducted for their potential usages for novel electronic and optical devices. Especially, sophisticated ma…
{\it Ab initio} approach to the lattice softening of an Al slab driven by collective electronic excitations after ultrashort laser pulse irradiation
Hiroki Katow, Yoshiyuki Miyamoto
Recent advances in ultrashort laser pulse techniques have opened up a wide variety of applications in both fundamental physics and industrial fields. In this work, mo…
Numerical Investigation of Triexciton Stabilization in Diamond with Multiple Valleys and Bands
Hiroki Katow, Junko Usukura, Ryosuke Akashi +2
The existence of polyexcitons, the -body complexes of excitons for in 3D bulk systems, has been controversial for more than 40 years since its first theoretical suggesti…