Nonlinear spectroscopy in In0.53Ga0.47As/InP multiple quantum wells
- 13 July 1987
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 51 (2) , 86-88
- https://doi.org/10.1063/1.98605
Abstract
Near‐band‐gap optical nonlinearity in In0.53Ga0.47As/InP multiple quantum well (MQW) structures is studied by a combination of nonlinear absorption, pump‐and‐probe, and forward degenerate four‐wave mixing experiments. Near complete saturation of the n=1 heavy‐hole exciton is observed for the first time in In0.53Ga0.47As/InP MQW structures. Nonlinear susceptibility χ(3) is found to be 0.08 esu, which is about the same as that for GaAs/GaAlAs MQW structures. Saturation intensity is 200 W/cm2.Keywords
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