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Improvement in intersubband optical absorption and the effects of device parameter variations in quantum wells with an applied electric field

Date

1999

Author

Kasapoglu, E
Sari, H
Ergun, Y
Sokmen, I

Metadata

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Abstract

The intersubband optical absorption in symmetric and asymmetric, single and coupled, double GaAs/Ga1-xAlxAs quantum wells is calculated. The results have been obtained in the presence of a uniform electric field as a function of the potential symmetry, size of the quantum well, and coupling parameter of the wells. In coupled double quantum wells we obtain a large Stark effect that can be used to fabricate tuneable photodetectors. We show that the effect of an applied electric field on the intersubband optical absorption is similar to changes in the dimensions of the structure. This behaviour in the intersubband optical absorption for different wells and barrier geometries can be used to study these systems in regions of interest, without the need for the growth of many different samples. (C) 1999 Academic Press.

Source

SUPERLATTICES AND MICROSTRUCTURES

Volume

26

Issue

6

URI

https://dx.doi.org/10.1006/spmi.1999.0784
https://hdl.handle.net/20.500.12418/11727

Collections

  • Makale Koleksiyonu [5200]
  • Makale Koleksiyonu [5745]
  • Öksüz Yayınlar Koleksiyonu - WoS [6175]



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