||D. S. Chemla, D. A. B. Miller and P. W.
Smith, "Nonlinear Optical Properties of GaAs/GaAlAs Multiple Quantum Well Material:
Phenomena and Applications. Opt. Eng. 24, 556-564 (1985).
microstructures whose dimensions are comparable to atomic dimensions and whose interfaces
are atomically smooth exhibit novel optical properties not encountered in the parent
compounds. Quantum well structures, which consist of ultrathin semiconductor layers
alternately grown one on the other, possess remarkable optical nonlinearities and
electro-optical properties with potential applications in optoelectronics The authors
review their studies of GaAs/AlGaAs quantum well structures (QWS). They briefly discuss
the physics of absorption in QWS at room temperature, and describe the mechanisms of
saturation of excitonic absorption and refraction and that of electroabsorption in QWS.
Finally, they review the applications of these effects to optical processing and
Full text available for