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Photon-Counting Detectors
27 February 2012
Cost: Free to Attend
Length: Approximately one hour.
Speaker(s): Robert Hadfield, Superconducting Single Photon Detectors Research Group , Heriot-Watt University (Edinburgh, Scotland)
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Infrared photon-counting detectors are a key enabling technology for a host of applications at the frontiers of science.   In the past decade, single-photon detectors based on superconducting nanowires have emerged as an alternative to established photon-counting technologies such as photomultipliers and avalanche photodiodes.  These new devices offer IR single-photon sensitivity with low dark counts, free-running operation, and excellent timing resolution.  I will discuss various types of IR photon-counting detectors the evolution of superconducting single-photon detector technology, practical implementations, and future avenues for development.  I will then highlight several promising application areas for these detectors: characterization of quantum emitters, time-of-flight ranging, fiber Raman temperature sensing and quantum-key distribution.

Robert Hadfield Superconducting Single Photon Detectors Research Group Heriot-Watt University (Edinburgh, Scotland)  
Hamamatsu Corporation :

Hamamatsu Corporation is the North American subsidiary of Hamamatsu Photonics K.K. (Japan), a leading manufacturer of devices for the generation and measurement of infrared, visible, and ultraviolet light. We manufacture photon-counting devices such as photomultiplier tubes, hybrid photodetectors, multi-pixel photon counters, EMCCD cameras, and scientific CMOS cameras. We also offer scientific light sources, photodiodes, infrared detectors, image sensors, and specialized systems.