Photon detection with cooled avalanche photodiodes
- 9 November 1987
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 51 (19) , 1493-1494
- https://doi.org/10.1063/1.98665
Abstract
Commercial avalanche photodiodes have been operated as single-photon detectors at an optimum operating temperature and bias voltage. These detectors were found to be 1.5–3 times more sensitive than presently available photomultiplier tubes (PMT’s). Both single-photon detection probability and detector noise increase with bias voltage; detection probabilities greater than twice that of a PMT were obtained with detector noise levels below 100 counts per second. Higher probabilities were measured at higher noise levels. The sources of noise and their dependence on temperature and bias voltage are discussed.Keywords
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