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Proceedings Paper

Evolution of spatio-spectral coherence properties of twin beam states in the high-gain regime
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Paper Abstract

We present the experimental investigation of the coherence properties of the light produced by parametric down conversion in the macroscopic regime, also including pump depletion. In particular, we compare the results obtained in very similar geometric conditions by using two nonlinear crystals having different lengths. We observe that the number of generated photons, the size of spatio-spectral coherence areas, and the number of modes in the photon number statistics exhibit a similar behavior in the two crystals as a function of pump mean power, even if we notice that the absolute values are different. The available theory of parametric down conversion cannot account for these differences.

Paper Details

Date Published: 7 May 2015
PDF: 6 pages
Proc. SPIE 9505, Quantum Optics and Quantum Information Transfer and Processing 2015, 95050S (7 May 2015); doi: 10.1117/12.2178952
Show Author Affiliations
Alessia Allevi, Univ. degli Studi dell'Insubria (Italy)
Ottavia Jedrkiewicz, Institute for Photonics and Nanotechnologies, CNR (Italy)
Ondřej Haderka, Palacký Univ. Olomouc (Czech Republic)
Jan Peřina Jr., Palacký Univ. Olomouc (Czech Republic)
Maria Bondani, Institute for Photonics and Nanotechnologies, CNR (Italy)

Published in SPIE Proceedings Vol. 9505:
Quantum Optics and Quantum Information Transfer and Processing 2015
Konrad Banaszek; Christine Silberhorn, Editor(s)

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