Theory of optical nonlinearities of coupled-band quantum wells with many-body effects

CHOW, Weng W., PEREIRA, Mauro, BINDER, Rolf H., KOCH, Stephan W. and OSINSKI, Marek (1994). Theory of optical nonlinearities of coupled-band quantum wells with many-body effects. In: CHOW, Weng W. and OSKINSKI, Marek, (eds.) Physics and Simulation of Optoelectronic Devices II. SPIE proceedings, 2146 (2146). SPIE, 236-248.

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Link to published version:: 10.1117/12.178514


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.

Item Type: Book Section
Additional Information: From conference OELASE'94, Los Angeles (1994)
Research Institute, Centre or Group: Materials and Engineering Research Institute > Thin Films Research Centre > Electronic Materials and Sensors Research Group
Identification Number: 10.1117/12.178514
Depositing User: Helen Garner
Date Deposited: 12 Dec 2014 15:55
Last Modified: 12 Dec 2014 15:55

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