Spatial properties of twin-beam correlations at low- to high-intensity transition

2014/05/06 by Radek Machulka, Ondrej Haderka, Jan Perina Jr. +3 · 1 citation
Physics and Astronomy · #physics.optics #quant-ph

paper · pdf · doi:10.1364/oe.22.013374

6 pages, 4 figures, accepted for publication in Optics Express

arxiv created 2014/05/06 · arxiv updated 2015/06/19

Abstract

It is shown that spatial correlation functions measured for correlated photon pairs at the single-photon level correspond to speckle patterns visible at high intensities. This correspondence is observed for the first time in one experimental setup by using different acquisition modes of an intensified CCD camera in low and high intensity regimes. The behavior of intensity auto- and cross-correlation functions in dependence on pump-beam parameters including power and transverse profile is investigated.

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