Photoinduced charge carrier dynamics in germanium
NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS(2023)
摘要
The light-induced injection of charge carriers from the valence to the conduction band of a solid, and their subsequent thermalization and relaxation, are fundamental physical processes. They allow dynamically altering the conduc-tivity of a semiconductor, controlling its electro-optical properties with light fields. In this paper, we discuss the elusive photoinjection mechanism occurring during light-matter interaction, to then focus on the charge thermalization and relaxation processes in germanium.
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