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Institute of Optics

bar_yell

Wave packets in a semiconductor superlattice

Mark L. Biermann and C. R. Stroud, Jr.

Appl. Phys. Lett. 58, 2279 (1991).


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.


Click here to download the .pdf version of the paper biermann912.pdf (431 kB)


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