"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." . "Spatial properties of twin-beam correlations at low- to high-intensity transition"@en . "RIV/68378271:_____/14:00436680!RIV15-GA0-68378271" . . . "Bondani, M." . "Pe\u0159ina jr., J." . "000337501600064" . "10.1364/OE.22.013374" . "6"^^ . "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."@en . "[B8564E3E6A6F]" . "46359" . "Machulka, R." . "6"^^ . . "1094-4087" . . "twin-beam correlations; photon pairs; speckle patterns"@en . "Allevi, A." . "RIV/68378271:_____/14:00436680" . "Spatial properties of twin-beam correlations at low- to high-intensity transition" . . . . "1"^^ . . . . "22" . . "11" . "Optics Express" . . . . . . "Haderka, Ond\u0159ej" . "I, P(ED2.1.00/03.0058), P(EE2.3.20.0058), P(GAP205/12/0382), S" . "Lamperti, M." . . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "Spatial properties of twin-beam correlations at low- to high-intensity transition" . "Spatial properties of twin-beam correlations at low- to high-intensity transition"@en . . .