High sensitivity photon feedback photodetectors

Details High sensitivity photon feedback photodetectors High sensitivity photon feedback photodetectors

1981-02-02

1983-08-16

Davie, James W.

357 16, 357 17, 357 30, H01L 29161, H01L 3300, H01L 2714

Patent

active

043994482

ABSTRACT:
Large current gains and high degrees of sensitivity to impinging primary photons are realized in photon feedback photodetectors embodying the invention. A photocurrent generated by an internal photodiode (10, 11) in response to the primary photons (6) causes secondary photons to be emitted by internal serially connected luminescence diodes (12, 13; 14, 15). Secondary photons traveling away from the photodiode are redirected by a reflector (16) to impinge on the photodiode and thereby sustain the photocurrent. Gains of the order of 100 are realized by these photodetectors.

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patent: 4332974 (1982-06-01), Fraas
J. M. Woodall and D. Shang, "Differential Phototransducer", IBM Technical Disclosure Bulletin, vol. 12, No. 9 (1970) p. 1486.

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