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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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The latest installment of the
Previous Single Photon Workshops:
2011 PTB Braunschweig, Germany
2009 Single Photon Workshop, NIST Boulder, USA
2007 Single Photon Workshop, INRIM Torino, Italy
2005 Single Photon Workshop, NPL, Teddington, UK
2003 Single Photon Workshop, NIST Gaithersburg, USA
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Last Updated on Wednesday, 03 April 2013 03:34 |
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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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See our review article on Single Photon Sources and Detectors in Review of Scientific Instruments |
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Last Updated on Wednesday, 03 April 2013 03:32 |
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