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Single Photon Technology PDF Print E-mail
Written by Alan Migdall   
Saturday, 23 January 2010 23:34

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.

 
Workshops PDF Print E-mail
Written by Alan Migdall   
Monday, 10 August 2009 17:20

 

The next installment of the

Single Photon Workshop

will be in Geneva in 2015

Previous Single Photon Workshops:

2013 Oak Ridge National Laboratory, USA

2011 PTB Braunschweig, Germany

2009 NIST Boulder, USA

2007 INRIM Torino, Italy

2005 NPL, Teddington, UK

2003 NIST Gaithersburg, USA

Last Updated on Saturday, 29 March 2014 16:23
 
Photon Counting Metrology PDF Print E-mail
Written by Alan Migdall   
Tuesday, 28 July 2009 12:54

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.

Last Updated on Wednesday, 29 July 2009 12:32
 
Parametric Downconversion PDF Print E-mail
Written by Alan Migdall   
Thursday, 30 July 2009 20:21

Parametric DownconversionFor an explanation of this beautiful light you don't need to read the book. You can just watch our movie.

Last Updated on Monday, 21 February 2011 15:16
 
Single Photons at JQI PDF Print E-mail
Written by Administrator   
Wednesday, 22 July 2009 15:25

See our Book- Single-Photon Generation and Detection: Physics and Applications (Nov. 2013 Academic Press)

and our review article on Single-Photon Sources and Detectors in Review of Scientific Instruments

Last Updated on Sunday, 30 March 2014 10:19
 
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