||W. H. Knox, R. L. Fork, M. C. Downer,
D. A. B. Miller, D. S. Chemla, C. V. Shank, A. C. Gossard and W. Wiegmann,
"Femtosecond Dynamics of Nonequilibrium Correlated Electron-Hole Pair Distributions
in Room-Temperature GaAs Multiple Quantum Well Structures" n "Ultrafast
Phenomena IV" ed. D. H. Auston and K. B. Eisenthal, Proc Fourth Int. Conf. Monterey,
June 1984, (Springer-Verlag, New York 1984), 162-165.
The GaAs multiple quantum
well structure (MQWS) is a new and unique nonlinear optical material. The reduced
dimensionality of the electron-hole system in the ultra-thin dimensionality of the
electron-hole system in the ultra-thin (100A) layers gives rise to clear excitonic
absorption peaks which are observed even at room temperature. The GaAs MQWS may form the
basis for future high speed optoelectronic devices operating at room temperature.