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Search Publications by: Alan Migdall (Fed)

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Displaying 326 - 350 of 431

Simultaneous Measurement of Group and Phase Delay Between Two Photons

December 1, 2000
Author(s)
D A. Branning, Alan L. Migdall, A V. Sergienko
We report on an experiment to determine both the group and phase delays experienced by orthogonally polarized photon pairs travelling through a birefringent medium. Both types of delay are determined from the same set of coincidence-counting data. The

Infrared Spectral Responsivity Scale of NIST

May 1, 2000
Author(s)
George P. Eppeldauer, Alan L. Migdall
An ambient temperature Infrared Spectral Responsivity Comparator Facility has been developed at NIST to calibrate infrared detectorsand radiometers for spectral and spatial responsivities. Test detectors are substituted for working- or transfer-standard

Calculating Characteristics of Non-collinear Phase-Matching in Uniaxial and Biaxial Crystals

April 1, 2000
Author(s)
N Boeuf, D A. Branning, I Chaperot, E Dauler, S Guerin, G Jaeger, Andreas Muller, Alan L. Migdall
A method of calculating the characteristics of phase-matching in both uniaxial and biaxial crystals is presented. Although significant work has been done to characterize the collinear case of phase-matching and to present many of its applications, the non

Observation of Photons From an Inhibited Spontaneous Emitter

February 1, 2000
Author(s)
D A. Branning, Alan L. Migdall
A fun and timely problem in cavity quantum electrodynamics is the question of whether atoms are actually radiating anything when their spontaneous emission is inhibited by a cavity. Recent theoretical papers have indicated that the answer to this question

Migdall Responds II: More Correlated Photon Metrology History

November 1, 1999
Author(s)
Alan L. Migdall
I appreciate the comments of Mike Gruntman (Sept., page 80) concerning the history of using correlated pairs of particles(photons) to determine absolute detector quantum efficiencies. Unfortunately there is an overall misunderstanding of the technique