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Written by Alan Migdall
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Sunday, 24 January 2010 04:34 |
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We have a program to advance single photon detector technology. One effort adresses the problem of photon counting deadtime which can significant limit the maximum count that a detector can operate. To get around this problem we have developed a scheme multiplexes a number of detectors by an optical switch that remembers which detectors have fired last and directs incoming photons to a detector that is live. This scheme allows a the detector system to operate as much higher count rates than is possible with a single detector. |
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Written by Alan Migdall
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Monday, 10 August 2009 22:20 |
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Presentations are now available for the
Workshop on Single and Entangled Photons:
Sources, Detectors, Components, and Applications
held at NIST, 325 Broadway, Boulder, Colorado November 3-6, 2009
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Last Updated on Friday, 15 January 2010 14:48 |
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Photon Counting Metrology |
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Written by Alan Migdall
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Tuesday, 28 July 2009 17:54 |
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We work on high accuracy detection efficiency at photon counting levels. This is a particularly difficult task as photon-counting detectors can only handle very low levels of light before saturating or being destroyed, (that is 10-10 W) while typical detector calibrations require significant amounts of light (10-4 W) so that the noise of the detector does not lead to inaccurate measurements. To bridging this gap we have created some very high gain but very low noise detectors to be used as transfer standard devices to allow the efficiency of photon-counting detectors to be accurately determined. If you have an interest in such accuracy we would be very interested in a potential collaborations. |
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Last Updated on Wednesday, 29 July 2009 17:32 |
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Parametric Downconversion |
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Written by Alan Migdall
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Friday, 31 July 2009 01:21 |
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 For an explanation of this beautiful light you don't need to read the book. You can just watch our movie.
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Last Updated on Monday, 21 February 2011 20:16 |
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Written by Administrator
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Wednesday, 22 July 2009 20:25 |
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We are currently working on a special journal issue resulting from our Single Photon Workshop held in November 2009 |
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Last Updated on Friday, 16 April 2010 03:00 |
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