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Search Publications by: Alan Migdall (Fed)

Displaying 201 - 225 of 431

Increased Cross-Correlation in Cascaded Four-Wave Mixing Processes

May 29, 2007

Author(s)

Jingyun Fan, Alan L. Migdall, L Wang

We report the measurement of increased noise cross-correlation between stokes and anti-stokes beams created in cascaded four-wave mixing processes with dual pump wavelengths, when two-photon light is efficiently created at the middle frequency. This method

A Broadband High Spectral Brightness Fiber-Based Two-Photon Source

March 19, 2007

Author(s)

Jingyun Fan, Alan L. Migdall

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

High Accuracy Verification of a Correlated-Photon-Based Method for Determining Photon-Counting Detection Efficiency

February 19, 2007

Author(s)

Sergey V. Polyakov, Alan L. Migdall

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 most

Calibrating Photon-Counting Detectors to High Accuracy: Background and Deadtime Issues

January 20, 2007

Author(s)

Michael Ware, Alan L. Migdall, Joshua Bienfang, Sergey Polyakov

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

Introduction to Journal of Modern Optics Special Issue on Single Photon: Sources, Detectors, Applications and Measurement Methods

January 20, 2007

Author(s)

J Cheung, Alan L. Migdall, Stefania Castelletto

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

Reduced Deadtime and Higher Rate Photon-Counting Detection Using a Multiplexed Detector Array

January 20, 2007

Author(s)

Stefania Castelletto, Ivo P. Degiovanni, V Schettini, Alan L. Migdall

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 switch

Bright, phase-stable, broadband, fiber-based source of polarization-entangled photon pairs

January 1, 2007

Author(s)

M D. Eisaman, Jingyun Fan, Alan L. Migdall

Experimental detection of photons emitted during inhibited spontaneous emission, The Nature of Light: What Are Photons?

January 1, 2007

Author(s)

D A. Branning, Alan L. Migdall, P G. Kwiat

High Accuracy Calibration of Photon-counting Detectors On Demand"

January 1, 2007

Author(s)

Alan L. Migdall, Sergey V. Polyakov

High accuracy dual lens transmittance measurements

January 1, 2007

Author(s)

J Cheung, A Gardner, Alan L. Migdall, Sergey Polyakov, M J. Ware

High accuracy dual lens transmittance measurements

January 1, 2007

Author(s)

J Cheung, J L. Gardner, Alan L. Migdall, Sergey Polyakov, M J. Ware

Increased cross-correlation in cascaded four-wave mixing processes

January 1, 2007

Author(s)

Jingyun Fan, Alan L. Migdall, L J. Wang

High Accuracy Calibration of Photon-Counting Detectors

October 25, 2006

Author(s)

Sergey V. Polyakov, Michael Ware, Alan L. Migdall

We discuss a practical implementation of a photon-counting detector calibration using correlated photon pairs produced by parametric down-conversion. In this calibration scheme, the detection of a first photon triggers the measurement sequence aimed at