Theory of quasiequilibrium nonlinear optical absorption in semiconductor superlattices

K. C. Je, T. Meier, F. Rossi, Stephan W Koch

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Semiconductor heterostructures have received interest for potential applications in optoelectronic devices. The operation of resonant nonlinear optoelectronic devices relies on the large nonlinearities in the spectral vicinity of the fundamental absorption edge. For feasibility studies, design, and optimization of possible devices, a fundamental model for the nonlinear optical material response is needed. In this paper, a theory that gives a good description of the nonlinear optical absorption of semiconductor superlattices is presented. The transition between the excitonic absorption to the gain regime, which takes place with increasing density, has been studied. It is shown that the anisotropy of the superlattice structure strongly influences the gain spectra.

Original languageEnglish (US)
Pages (from-to)2978-2980
Number of pages3
JournalApplied Physics Letters
Volume67
Issue number20
DOIs
StatePublished - Jan 1 1995
Externally publishedYes

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optoelectronic devices
superlattices
optical absorption
optical materials
nonlinearity
anisotropy
optimization

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Theory of quasiequilibrium nonlinear optical absorption in semiconductor superlattices. / Je, K. C.; Meier, T.; Rossi, F.; Koch, Stephan W.

In: Applied Physics Letters, Vol. 67, No. 20, 01.01.1995, p. 2978-2980.

Research output: Contribution to journalArticle

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