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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…
physics.optics2024★ 7 cited
Generalized Linear Response Theory for Pumped Systems and its Application to Transient Optical Properties
Amir Eskandari-asl, Adolfo Avella
We derive the two-time linear response theory for out-of-equilibrium pumped systems, generic pump-probe delays and probe frequencies. Such a theory enormously simplifies the numeri…