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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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