Nonlinear and bistable optical device

Details Nonlinear and bistable optical device Nonlinear and bistable optical device

1987-01-14

1987-12-29

Edlow, Martin H.

357 4, 357 56, 357 58, H01L 2714

Patent

active

047164492

ABSTRACT:
The invention is a nonlinear or bistable optical device having a low switching energy. The invention uses a means responsive to light for generating a photocurrent, a structure having a semiconductor quantum well region, and means responsive to the photocurrent for electrically controlling an optical absorption of the semiconductor quantum well region. The optical absorption of the semiconductor quantum well region varies in response to variations in the photocurrent. A photodiode or phototransistor may be used as the means responsive to light, and may be made integral with the structure having the semiconductor quantum well region. An array of devices may be fabricated on a single chip for parallel logic processing.

REFERENCES:
Wood et al., Appl. Phys. Lett., 44(1), 1 Jan. 1984, pp. 16-18.
Bohnert et al., Appl. Phys. Lett., 43(12), 15 Dec. 1983, pp. 1088-1090.
Hajto et al., Philosophical Magazine B, 1983, vol. 47, No. 4, pp. 347-366.

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