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Commercially available Geiger mode single-photon avalanche photodiode with a very low afterpulsing probability | | Mario Stipčević
; | | Date: |
17 May 2015 | | Abstract: | Afterpulsing is one of the main technological flaws present in photon
counting detectors based on solid-state semiconductor avalanche photodiodes
operated in Geiger mode. Level of afterpulsing depends mainly on type of the
semiconductor, doping concentrations and temperature and presents an additional
source of noise, along with dark counts. Unlike dark counts which appear
randomly in time, aterpulses and are time-correlated with the previous
detections. For measurements that rely on timing information afterpulsing can
create fake signals and diminish the sensitivity. In this work we test a novel
broadband sensitive APD that was designed for sub-Geiger avalanche gain
operation. We find that this APD, which has a reach-through geometry typical of
single-photon detection photodiodes, can also operate in Geiger mode with
usable detection sensitivity and acceptable dark counts level while exhibiting
uniquely low afterpulsing. The afterpulsing of tested samples was
systematically less than 0.05 percent at 10V excess voltage. | | Source: | arXiv, 1505.4407 | | Services: | Forum | Review | PDF | Favorites | |
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