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Search Publications by: Alan Migdall (Fed)

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Displaying 276 - 300 of 431

Coupling Efficiencies in Single-Photon On-Demand Sources

February 1, 2004
Author(s)
Stefania Castelletto, Ivo P. Degiovanni, M J. Ware, Alan L. Migdall
Many quantum computation and communication schemes require, or would significantly benefit from, true sources of single photon on-demand (SPOD). Unfortunately, such sources do not exist. It is becoming increasingly clear that coupling photons out of a SPOD

Status of a Multiplexed Single Photon On-Demand Source

August 1, 2003
Author(s)
Alan L. Migdall, Stefania Castelletto, M J. Ware
We present the status of our work implementing a single photon on-demand source based on a multiplexed arrangement of parametricdownconverters. An array of downconverters with multiplexed outputs makes it possible to create light pulses with increased

Observation of Photons Emitted During Inhibited Spontaneous Emission

June 1, 2003
Author(s)
D A. Branning, P G. Kwiat, Alan L. Migdall
We present the results of an experiment to observe inhibited spontaneous emission of a parametric downconverter by an optical cavity whose switching time is short compared with the round trip time of the light. The question is, can photons be counted

Correlated Photon Radiometry

May 1, 2003
Author(s)
Alan L. Migdall
Each of these techniques uses the process of optical parametric down-conversion (PDC) to produce correlated pairs of photons. This process employs a nonlinear medium which allows photons from a pump beam to, in effect, decay into pairs of photons under the