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Proceedings Paper

Quantum correlations in position, momentum and intermediate bases, measured using fiber arrays
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Paper Abstract

We have developed a new approach to measuring the spatial position of a single photon. Using fibers of different length, all connected to a single detector allows us to use the high timing precision of single photon avalanche diodes (SPAD) to spatially locate the photon. We have built two 8-element detector arrays to measure the full-field quantum correlations in position, momentum and intermediate bases for photon pairs produced in parametric down conversion. The strength of the position-momentum correlations is found to be an order of magnitude below the classical limit.

Paper Details

Date Published: 10 February 2012
PDF: 8 pages
Proc. SPIE 8274, Complex Light and Optical Forces VI, 82740E (10 February 2012); doi: 10.1117/12.912055
Show Author Affiliations
F. Izdebski, Heriot-Watt Univ. (United Kingdom)
J. Leach, Univ. of Glasgow (United Kingdom)
R. E. Warburton, Heriot-Watt Univ. (United Kingdom)
D. G. Ireland, Univ. of Glasgow (United Kingdom)
S. M. Barnett, Univ. of Strathclyde (United Kingdom)
A. M. Yao, Univ. of Strathclyde (United Kingdom)
G. S. Buller, Heriot-Watt Univ. (United Kingdom)
M. J. Padgett, Univ. of Glasgow (United Kingdom)

Published in SPIE Proceedings Vol. 8274:
Complex Light and Optical Forces VI
Enrique J. Galvez; David L. Andrews; Jesper Glückstad; Marat S. Soskin, Editor(s)

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