Advances in Silicon Carbide Single Photon Detectors
We present overview of achieved results on 4H-SiC avalanche photodiodes (APDs) and arrays. Cost-effective solar-blind optical filter allows achieving high solar photon rejection ratio of more than 106 in combination with more than 40% single photon detection efficiency at 266nm. Three iterations of devices were fabricated and evaluated to compare their optical and electrical properties. Dark count rates and single photon detection efficiencies are the main characteristics compared for these three iterations of device designs.
Edouard V. Monakhov, Tamás Hornos and Bengt. G. Svensson
A. V. Vert et al., "Advances in Silicon Carbide Single Photon Detectors", Materials Science Forum, Vols. 679-680, pp. 543-546, 2011