Abstract

A calculation of the dependence of the saturation intensity in quantum wells on lattice-mismatch-induced biaxial strain, including valence-band-mixing effects, excitons, and screening within a quasi-static single-plasmon-pole approximation, is presented. The model is shown to compare well with experiment. It is found that for decoupled light-hole and heavy-hole bands the saturation intensity is generally linear in proportion to the strain and dramatically increases for strains at which the heavy-hole and the light-hole bands are degenerate.

© 1996 Optical Society of America

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