Interest in semiconductor multiple quantum well (MQW) materials has been stimulated by the demonstration that they exhibit pronounced excitonic resonances in optical absorption at room temperature. Very small saturation intensities have been reported for the excitonic absorption in GaAs/AlGaAs multiple quantum wells fabricated by molecular beam epitaxy.1-3 We have begun a study of the same structures grown by metal-organic chemical vapor deposition (MOCVD). The growth conditions were tailored to optimize the nonlinear optical properties.

© 1987 Optical Society of America

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