Title: Ultrafast nonlinear optics due to electron-hole plasma in bulk semiconductors
Authors: Meng, HF
Lai, CM
Department of Electrophysics
Institute of Physics
Keywords: electron-hole plasma;semi conductors
Issue Date: 1-Sep-1997
Abstract: It is theoretically demonstrated that, in the presence of an electric potential landscape, the ground-state energy of the electron-hole plasma can be substantially lowered against the ground-state energy of the excitons. The electron-hole plasma is found to be unstable at lower carrier densities. The critical carrier density for the transition between these two states can be reduced. This reduction provides a new mechanism of nonlinear optics for bulk direct band-gap semiconductors, with picosecond relaxation time, large nonlinearity, and requiring low pump intensity.
URI: http://hdl.handle.net/11536/339
ISSN: 0921-4526
Journal: PHYSICA B
Volume: 240
Issue: 1-2
Begin Page: 76
End Page: 82
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  1. A1997XZ73600011.pdf