Optical bistability at room temperature

H. M. Gibbs, S. S. Tarng, J. L. Jewell, D. A. Weinberger and K. Tai

Optical bistable devices may someday be the key elements of all-optical logic and computing systems. Semiconductor devices appear particularly promising because of very large optical nonlinearities permitting the construction of very small devices. The goal is to develop small (~ 1μm), fast (~1ps), low-power (~1μW), high-temperature (~300 K) devices. Herein is reported room-temperature operation of a GaAs super-lattice device which is very similar in size, speed, and power to the low-temperature pure GaAs device.

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