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cond-mat.mtrl-sci2020
High-order harmonic generation in graphene: nonlinear coupling of intra and interband transitions
Shunsuke A. Sato, Hideki Hirori, Yasuyuki Sanari +2
We investigate high-order harmonic generation (HHG) in graphene with a quantum master equation approach. The simulations reproduce the observed enhancement in HHG in graphene under…
cond-mat.mtrl-sci2018
Zener Tunneling Breakdown in Phase-Change Materials Revealed by Intense Terahertz Pulses
Yasuyuki Sanari, Takehiro Tachizaki, Yuta Saito +8
We have systematically investigated the spatial and temporal dynamics of crystallization that occurs in the phase-change material Ge2Sb2Te5 upon irradiation with an intense THz pul…