CCD-based detection of quantum spatial correlation of twin beams for high-sensitivity imaging

O. Jedrkiewicz; G. Molina Terriza; E. Brambilla; L. Caspani; A. Gatti; L. A. Lugiato; P. Di Trapani

doi:10.1117/12.733886

3 October 2007 CCD-based detection of quantum spatial correlation of twin beams for high-sensitivity imaging

O. Jedrkiewicz, G. Molina Terriza, E. Brambilla, L. Caspani, A. Gatti, L. A. Lugiato, P. Di Trapani

Proceedings Volume 6710, Quantum Communications and Quantum Imaging V; 671005 (2007) https://doi.org/10.1117/12.733886
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

We review and compare the results of quantum spatial correlation measurements in parametric down-conversion in the high-gain pulsed regime, with preliminary measurements performed in the low-gain cw-pumped regime. The diagnostics is based on a high quantum efficiency CCD camera, and in the second case the radiation pattern is recorded after temporal integration of the "single-photon" spatial distribution. The effect of the detected number of temporal modes on the accessibility of the sub-shot noise regime is discussed, together with the identification of suitable regimes for weak image detection.

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O. Jedrkiewicz, G. Molina Terriza, E. Brambilla, L. Caspani, A. Gatti, L. A. Lugiato, and P. Di Trapani "CCD-based detection of quantum spatial correlation of twin beams for high-sensitivity imaging", Proc. SPIE 6710, Quantum Communications and Quantum Imaging V, 671005 (3 October 2007); https://doi.org/10.1117/12.733886

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