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Proceedings Paper

Room-temperature excitonic optical properties in ZnSe-ZnS/GaAs multiple quantum wells
Author(s): De Zen Shen; Hongyu Li; Jiying Zhang; Xiwu Fan
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Paper Abstract

Excitonic optical bistability with nanosecond switching time in ZnSe-ZnS multiple quantum wells (MQWs) with a Fabry-Perot (FP) cavity is investigated at room temperature. The research result indicates that the threshold and contrast ratio for the optical bistability in ZnSe-ZnS MQWs with a FP cavity are about 0.2 MW/cm2 and 6:1, respectively. On the basis of the room temperature excitonic absorption spectra obtained here, we attribute the major nonlinear mechanism for the optical bistability to the excitonic saturating absorption due to phase space filling of excitonic states and excitonic band broadening.

Paper Details

Date Published: 20 February 1998
PDF: 4 pages
Proc. SPIE 3175, Third International Conference on Thin Film Physics and Applications, (20 February 1998); doi: 10.1117/12.300723
Show Author Affiliations
De Zen Shen, Changchun Institute of Physics (China)
Hongyu Li, Changchun Institute of Physics (China)
Jiying Zhang, Changchun Institute of Physics (China)
Xiwu Fan, Changchun Institute of Physics (China)

Published in SPIE Proceedings Vol. 3175:
Third International Conference on Thin Film Physics and Applications
Shixun Zhou; Yongling Wang; Yi-Xin Chen; Shuzheng Mao, Editor(s)

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