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Author: alan migdall

Displaying records 31 to 40 of 155 records.
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31. Experimental Test of Non-Local Realism Using a Fiber-Based Source of Polarization-Entangled Photon Pairs
Published: 3/25/2008
Authors: Jingyun Fan, M D. Eisaman, Elizabeth Anne Goldschmidt, J Chen, Alan L Migdall
Abstract: We describe an experimental test of local realistic and non-local realistic theories using polarization-entangled two-photon singlet states created using a fiber-based polarization Sagnac interferometer. We show a violation of Bell s inequality in th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841112

32. Quantum state tomography of a fiber-based source of polarization-entangled photon pairs
Published: 12/20/2007
Authors: Jingyun Fan, M D. Eisaman, Alan L Migdall
Abstract: We report an experimental demonstration of a bright highfidelity single-mode-optical-fiber source of polarization-entangled photon pairs. The source takes advantage of single-mode fiber optics, highly nonlinear microstructure fiber, judicious phas ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841096

33. An Optical Fiber-Based Source of Polarization-Entangled Photon Pairs
Published: 9/10/2007
Authors: Jingyun Fan, M D. Eisaman, Alan L Migdall
Abstract: We describe an achromatic, phase-stable, broadband source of polarization-entangled photon pairs with high spectral brightness that uses four-wave mixing in a fiber Sagnac interferometer. We achieved a polarization-entangled two-photon coincidence r ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841095

34. High Accuracy Dual Lens Transmittance Measurements
Published: 8/1/2007
Authors: J Cheung, James Gardner, Alan L Migdall, Sergey V Polyakov, Michael Ware
Abstract: We show how to determine the transmittance of short focal length lenses (f ~ 19 mm, in this case) with an uncertainty of 1 part in 103 or better by measuring transmittances of lens pairs of a set of three or more lenses with the same nominal focal le ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841064

35. Implementing a Multiplexed System of Detectors for Higher Photon Counting Rates
Published: 7/1/2007
Authors: V Schettini, Sergey V Polyakov, Ivo Pietro Degiovanni, Giorgio Brida, Stefania Castelletto, Alan L Migdall
Abstract: Photon counting applications are often limited by detector deadtime to operate at count rates of a few MHz, at best, and often at significantly lower levels. This limitation is becoming more critical as with the advance of photon counting application ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841111

36. A Broadband High Spectral Brightness Fiber-Based Two-Photon Source
Published: 3/19/2007
Authors: Jingyun Fan, Alan L Migdall
Abstract: After characterizing the Raman scattering in a fused silica polarization-maintaining microstructure optical fiber, we built a fiber-based two-photon light source of high spectral brightness, broad spectral range, and very low noise background at room ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841058

37. High Accuracy Verification of a Correlated-Photon-Based Method for Determining Photon-Counting Detection Efficiency
Published: 2/19/2007
Authors: Sergey V Polyakov, Alan L Migdall
Abstract: We have implemented and characterized an independent primary standard method for the calibration of detection efficiency of photon counting detectors. The method is based on a light source producing correlated photon pairs. We have determined, and mo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841045

38. Calibrating Photon-Counting Detectors to High Accuracy: Background and Deadtime Issues
Published: 1/20/2007
Authors: Michael Ware, Alan L Migdall, Joshua C Bienfang, Sergey V Polyakov
Abstract: When photon-counting detectors are calibrated in the presence of a background signal, deadtime effects can be significant and must be carefully accounted for to achieve high accuracy. We present a method for separating the correlated signal from the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841009

39. Introduction to Journal of Modern Optics Special Issue on Single Photon: Sources, Detectors, Applications and Measurement Methods
Published: 1/20/2007
Authors: J Cheung, Alan L Migdall, Stefania Castelletto
Abstract: In October 2005, a 2-day follow up workshop, Single photon: sources, detectors, applications and measurement methods, was held at the NPL (National Physical Laboratory, UK). The focus for this workshop was to report on the key developments since the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841035

40. Reduced Deadtime and Higher Rate Photon-Counting Detection Using a Multiplexed Detector Array
Published: 1/20/2007
Authors: Stefania Castelletto, Ivo Pietro Degiovanni, V Schettini, Alan L Migdall
Abstract: We present a scheme for a photon-counting detection system that can be operated at incident photon rates higher than otherwise possible by suppressing the effects of detector deadtime. The method uses an array of N detectors and a 1-by-N optical swit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840994



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