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Search Publications by: Alan Migdall (Fed)

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Displaying 76 - 100 of 220

Tailored State Preparation for Solid State Quantum Memory

May 16, 2010
Author(s)
Elizabeth A. Goldschmidt, Sergey V. Polyakov, Sarah E. Beavan, Jingyun Fan, Alan L. Migdall
We use spectral hole burning in Pr3+:Y2SiO5 in order to prepare spectral distributions of ions optimized for using such a material as a quantum memory for photon states. Our spectral hole-burning implementations include preparing an ensemble of ions to be

Enhancing Image Contrast Using Coherent States and Photon Number Resolving Detectors

March 15, 2010
Author(s)
Aaron Pearlman, Alexander E. Ling, Elizabeth A. Goldschmidt, Jingyun Fan, Christoph Wildfeuer, Alan L. Migdall
We experimentally map the transverse profile of diffraction-limited beams using photon number resolving detectors. We observe strong compression of diffracted beam profiles for high detected photon number. This effect leads to higher contrast than a

Heralded, pure-state single-photon source based on a Potassium Titanyl Phosphate waveguide

February 15, 2010
Author(s)
Zachary H. Levine, Jingyun Fan, Jun Chen, Alexander E. Ling, Alan L. Migdall
WWe analyze the generation of single spatial mode, spectrally uncorrelated photon pairs via type II spontaneous parametric downconversion in a Potassium Titanyl Phosphate (KTP) waveguide using real experimental parameters. We show that this source can be

Scalable multiplexed detector system for high-rate telecom-bandsingle-photon detection

November 25, 2009
Author(s)
Sergey V. Polyakov, Alan L. Migdall, Giorgio Brida, Ivo P. Degiovanni, Fabrizio Piacentini, V Schettini
We present a photon-counting detection system at telecom wavelengths that overcomes the difficulties of photon-counting at high rates. Our detection system uses active multiplexing, an array of N detectors, and a 1-by-N optical switch with a control

A Program for Non-Collinear Phase-Matching Applications

November 24, 2009
Author(s)
N Boeuf, I Chaperot, E Dauler, G Jaeger, Andreas Muller, Alan L. Migdall
This is a program for calculating characteristics of collinear and non-collinear phase matching in both uniaxial and biaxial crystals. In particular, this program calculates the difference of the fast end slow indices of refraction as a function of angle

Movies of Optical Parametric Downconversion

November 24, 2009
Author(s)
A Rostapshov, D Martin, D A. Branning, E Dauler, S Thomas, Alan L. Migdall, N Boeuf, Andreas Muller
A series of photos of parametric downconversion are presented in movie format to help illustrate and understand the mechanics of parametric downconversion and phase matching.

Effect of Surface Modes on Photon Propagation through Dielectric Bandgaps

October 28, 2009
Author(s)
Natalia Malkova, Sergey V. Polyakov, Alan L. Migdall, Garnett W. Bryant
We investigate the Hartman saturation effect of photons traveling through barriers created by bandgaps of multilayer stacks. In particular, we investigate theoretically the recently observed jumps in photon transversal times due to adding a single layer

Interferometry with a photon-number resolving detector

October 19, 2009
Author(s)
Aaron Pearlman, Christoph Wildfeuer, Jun Chen, Jingyun Fan, Alan L. Migdall, Jonathan Dowling
With photon-number resolving detectors, we show compression of interference fringes with in- creasing photon numbers for a Fabry-P erot interferometer. This feature provides a higher precision in determining the position of the interference maxima compared

Innovations in Maximum Likelihood Quantum State Tomography

October 9, 2009
Author(s)
Scott C. Glancy, Emanuel H. Knill, Thomas Gerrits, Tracy S. Clement, Brice R. Calkins, Adriana E. Lita, Aaron J. Miller, Alan L. Migdall, Sae Woo Nam, Richard P. Mirin
At NIST we are engaged in an experiment whose goal is to create superpositions of optical coherent states (such superpositions are sometimes called "Schroedinger cat" states). We use homodyne detection to measure the light, and we apply maximum likelihood

Generation of optical Schrodinger cat states by number-resolved squeezed photon subtraction

May 31, 2009
Author(s)
Thomas Gerrits, Scott C. Glancy, Tracy S. Clement, Brice R. Calkins, Adriana E. Lita, Aaron J. Miller, Alan L. Migdall, Sae Woo Nam, Richard P. Mirin, Emanuel H. Knill
We have generated and measured an approximation of an optical Schrödinger cat state by photon subtraction from a squeezed state. Using single-photon avalanche photodiode detectors and photon-number-resolving transition edge sensors, we were able to extract

Quantum radiometry

May 2, 2009
Author(s)
Sergey V. Polyakov, Alan L. Migdall
We review radiometric techniques that take advantage of photon counting and stem from the quantum laws of nature. We present a brief history of metrological experiments and review the current state of experimental quantum radiometry.

Improved implementation of the Alicki Van Ryn nonclassicality test for a single particle using Si detectors

April 15, 2009
Author(s)
Sergey V. Polyakov, Alan L. Migdall, Giorgio Brida, Ivo P. Degiovanni, Marco Genovese, Fabrizio Piacentini, V Schettini, Nicolas Gisin
Recently a test of nonclassicality for a single qubit was proposed R. Alicki and N. Van Ryn, J. Phys, A: Math. Theor. 41, 062001 2008. We present an optimized experimental realization of this test leading to a 46standard deviation violation of classicality

Measuring Optical Tunneling Times using a Hong-Ou-Mandel Interferometer.

September 23, 2008
Author(s)
Sergey Polyakov, Alan L. Migdall, Paul D. Lett, David Papoular, Pierre Clade, Colin McCormick
We report a prediction for the delay measured in an optical tunneling experiment using Hong-Ou-Mandel (HOM) interference, taking into account the Goos-Hanchen shift generalized to frustrated total internal reflection situations. We precisely state

Improved multiplexed Infrared Single Photon Detectors

August 11, 2008
Author(s)
Sergey V. Polyakov, Alan L. Migdall, V Schettini, Ivo P. Degiovanni, Giorgio Brida, F Piacentini
We discuss a scheme for a photon-counting detection system that overcomes the difficulties of photon-counting at high rates at telecom wavelengths. Our method uses an array of N detectors and a 1-by-N optical switch with a control circuit to direct input

Spectrally Bright and Broad Fiber-Based Heralded Single-Photon Source

July 29, 2008
Author(s)
Elizabeth A. Goldschmidt, M D. Eisaman, Jingyun Fan, Sergey V. Polyakov, Alan L. Migdall
We present the first experimental characterization of a heralded single-photon source based on spontaneous four-wave-mixing in a single-mode microstructure fiber. We measure the second-order correlation function, g(2)(0), to be far below the classical
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