We report operation of a passively quenched silicon-SPAD at extremely low dark count rate of 5 Hz. While the quantum efficiency remained constant from -32<sup>o</sup>C down to -77<sup>o</sup>C, the after-pulsing depended on the cooling temperature.
© 2009 The Optical Society
Y. Kim, V. Makarov, Y. Jeong, and Y. Kim, "Silicon Single-Photon Detector with 5 Hz Dark Counts," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper JThE103.
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