Wave packets in a semiconductor superlattice
作者:
Mark L. Biermann,
C. R. Stroud,
期刊:
Applied Physics Letters
(AIP Available online 1991)
卷期:
Volume 58,
issue 20
页码: 2279-2281
ISSN:0003-6951
年代: 1991
DOI:10.1063/1.105234
出版商: AIP
数据来源: AIP
摘要:
A theoretical study of hole wave packets in a GaAs, Al0.3Ga0.7As superlattice is presented. Formation of the wave packet by short laser pulse excitation and the time‐dependent nature of the wave packet are discussed, with particular attention given to the quasi‐periodic nature of the time dependence. Phenomena analogous to those displayed in atomic and molecular wave packet systems are predicted. The wave packet formalism provides a powerful tool for studying coherent hole dynamics, including quantum beat phenomena, and could be useful in determining heavy and light hole relaxation rates.
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