Abstract
The average energy loss rate (AELR, in an ensemble sense) of hot electrons via interactions with quasi-equilibrium electron-only and electron-hole plasmas in bulk GaAs is calculated exactly, within the random phase approximation (RPA). Results are presented for plasma densities ranging from 4 X 1015 cm-3 to 1 X 1019 cm-3, and for temperatures ranging from 100 K to 300 K. Comparisons are made with simpler, static screening and plasmon pole approximations. Using the full RPA result, a critical plasma density is obtained beyond which the AELR decreases. A quantitative analysis of this behavior shows that it is due to both the Pauli exclusion principle, and to a blocking mechanism that occurs when plasmon emission processes become kinematically forbidden.© (1992) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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