Ultraviolet Single Photon Detection With Geiger-Mode 4H-SiC Avalanche Photodiodes

We report 4H-SiC avalanche photodiodes operated in Geiger mode for single photon detection at 265 nm. At room temperature, the single photon detection efficiency is 14% with a dark count probability of 1.7 x 10 -4 . Since the external quantum efficiency is 21% at 265 nm, it follows that 65% of the a...

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Veröffentlicht in:	IEEE photonics technology letters 2007-11, Vol.19 (22), p.1822-1824
Hauptverfasser:	Xiaogang Bai, Mcintosh, D., Handin Liu, Campbell, J.C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Avalanche photodiodes Avalanches Counting Dark current Detectors Electric breakdown Jitter photodetector Photodetectors Photodiodes Photonics Photons Quantum efficiency Silicon carbide Temperature distribution Ultraviolet ultraviolet detector Voltage
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Zusammenfassung:	We report 4H-SiC avalanche photodiodes operated in Geiger mode for single photon detection at 265 nm. At room temperature, the single photon detection efficiency is 14% with a dark count probability of 1.7 x 10 -4 . Since the external quantum efficiency is 21% at 265 nm, it follows that 65% of the absorbed photons are counted as avalanche events. The jitter of the photodiodes is also characterized.
ISSN:	1041-1135 1941-0174
DOI:	10.1109/LPT.2007.906830