High sensitivity photon feedback photodetectors

Details High sensitivity photon feedback photodetectors High sensitivity photon feedback photodetectors

H - Electricity

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H01L 31/10 (2006.01) H01L 31/107 (2006.01) H01L 31/111 (2006.01) H01L 31/12 (2006.01)

Patent

CA 1182200

- 16 - HIGH SENSITIVITY PHOTON FEEDBACK PHOTODETECTORS Abstract of the Disclosure Large current gains and high degrees of sensitivity to impinging primary photons are realized in photon feedback photodetectors embodying the invention. photocurrent generated by an internal photodiode in response to the primary photons causes secondary photons to be emitted by internal serially connected luminescence diodes. Secondary photons traveling away from the photodiode are redirected by a reflector 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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