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D. A. B. Miller, D. S. Chemla, P. W. Smith,
and A. C. Gossard, "Large Nonlinearities in Room-Temperature GaAs Structures" J.
Opt. Soc. Am. 72, 1783 (1982). We report studies of nonlinear optical
effects associated with absorption saturation in GaAs and in GaAs-GaAlAs
multiple-quantum-well (MQW) structures at room temperature near the bandgap wavelength. |