Sensitivity of the avalanche breakdown far infrared photodetector

Fielding Brown

doi:10.1117/12.2301528

1 December 1990 Sensitivity of the avalanche breakdown far infrared photodetector

Fielding Brown

Proceedings Volume 1514, 15th International Conference on Infrared and Millimeter Waves; 15143A (1990) https://doi.org/10.1117/12.2301528
Event: 15th International Conference on Infrared and Millimeter Waves, 1990, Orlando, FL, United States

Abstract

The photodetection sensitivity of the Avalanche Breakdown (AB) photodetector at λ=151μm has been increased by shaping the detector element so as to trap incident radiation by total internal reflection. Pulsed laser signals have been detected at powers as low as 5 x 10^-15 W, corresponding to the arrival at the detector of only 4-5 photons during each 300 ns laser pulse. Several mechanisms are considered.

Citation Download Citation

Fielding Brown "Sensitivity of the avalanche breakdown far infrared photodetector", Proc. SPIE 1514, 15th International Conference on Infrared and Millimeter Waves, 15143A (1 December 1990); https://doi.org/10.1117/12.2301528

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