NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications by: Alan Migdall (Fed)

Search Title, Abstract, Conference, Citation, Keyword or Author
Displaying 101 - 125 of 220

An Optical Fiber-Based Source of Polarization-Entangled Photon Pairs

September 10, 2007
Author(s)
Jingyun Fan, M D. Eisaman, Alan L. Migdall
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 rate of

High Accuracy Dual Lens Transmittance Measurements

August 1, 2007
Author(s)
J Cheung, James Gardner, Alan L. Migdall, Sergey Polyakov, Michael Ware
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 length

Implementing a Multiplexed System of Detectors for Higher Photon Counting Rates

July 1, 2007
Author(s)
V Schettini, Sergey Polyakov, Ivo P. Degiovanni, Giorgio Brida, Stefania Castelletto, Alan L. Migdall
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 applications such

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 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

Achieving Higher Photon Counting Rates Using Multiplexed Detectors

August 13, 2006
Author(s)
Stefania Castelletto, Ivo P. Degiovanni, Alan L. Migdall, Sergey Polyakov, V Schettini
As the quantum information field advances, the need for improved single-photon devices is becoming more critical. Quantum information systems are often limited by detector deadtime to count rates of a few MHz, at best. We present a multiplexed detection

Raman Suppression in a Microstructure Fiber With Dual Laser Pumps

May 21, 2006
Author(s)
Jingyun Fan, Alan L. Migdall
Coupling two frequency-conjugate laser pulses into an optical fiber, we observe at the middle frequency either enhanced photon generation via four-wave mixing or suppressed Raman emission depending on the phase difference between the two pumps.

Efficient Generation of Correlated Photon Pairs in a Microstructure Fiber

December 15, 2005
Author(s)
Jingyun Fan, Alan L. Migdall, L Wang
We report efficient generation of correlated photon pairs through degenerate four-wave mixing in microstructure fibers. With 735.7 nm pump pulses producing conjugate signal (688.5 nm) and idler (789.8 nm) photons in an 1.8 m microstructure fiber, we detect

Efficient generation of correlated photon pairs in a microstructure fiber

December 15, 2005
Author(s)
Jingyun Fan, Alan L. Migdall, L Wang
We report efficient generation of correlated photon pairs through degenerate four-wave mixing in a microstructure fiber. With 735.7 nm pump pulses producing correlated signal (688.5 nm) and idler (789.8 nm) photons in a 1.8 m microstructure fiber, we
Was this page helpful?