30 June 1994 Theory of optical nonlinearities of coupled-band quantum wells with many-body effects
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Abstract
Nonlinear optical properties of lattice-matched and strained semiconductor quantum wells are computed using generalized optical Bloch equations. The equations combine the influence of many-body, strain and bandcoupling effects, within a consistent model for quasi-static screening that includes contributions from all occupied subbands in a single-plasmon-pole type approximation. Numerical solutions for the absorption and refractive index change of InGaAs-AlGaAs systems are presented in the quasi-equilibrium regime for a broad range of excitation conditions, from the low density excitonic regime to the highly excited gain region. Good agreement with recent experimental results is found.
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Mauro Fernandes Pereira, Rolf H. Binder, Stephan W. Koch, "Theory of optical nonlinearities of coupled-band quantum wells with many-body effects", Proc. SPIE 2146, Physics and Simulation of Optoelectronic Devices II, (30 June 1994); doi: 10.1117/12.178514; https://doi.org/10.1117/12.178514
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