Effects of Strain, Substrate Misorientation, and Excitonic Transition on the Optical Polarization of Ordered Zinc-Blende Semiconductor Alloys

Yong Zhang, A. Mascarenhas, P. Ernst, F. A.J.M. Driessen, D. J. Friedman, K. A. Bertness, J. M. Olson, C. Geng, F. Scholz, H. Schweizer

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Abstract

A quantitative investigation of the optical polarization of CuPt-ordered zinc-blende semiconductors has been conducted, both experimentally and theoretically. Within experimental uncertainty, the polarization ratio of the HH-CB transition is independent of the degree of order, although the theory predicts a weak dependence. The experimental result can be described fairly well by the quasicubic model. Analytical formulas are given for calculating transition matrix elements with arbitrary polarization and degree of order.

Original languageAmerican English
Pages (from-to)6365-6373
Number of pages9
JournalJournal of Applied Physics
Volume81
Issue number9
DOIs
StatePublished - 1997

NREL Publication Number

  • NREL/JA-451-20709

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