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physics.optics2025
Controlling Ultrafast Excitations in Germanium:The Role of Pump-Pulse Parameters and Multi-Photon Resonances
Amir Eskandari-asl, Adolfo Avella
We employ the Dynamical Projective Operatorial Approach (DPOA) to investigate the ultrafast optical excitations of germanium under intense, ultrashort pump pulses. The method has v…
cond-mat.mtrl-sci2025★ 13 cited
Controlling photo-excited electron-spin by light-polarization in ultrafast-pumped altermagnets
Amir Eskandari-asl, Jorge I. Facio, Oleg Janson +2
Altermagnets (AMs) constitute a novel class of spin-compensated materials in which the symmetry connecting opposite-spin sublattices involves a spatial rotation. Here, we uncover a…