Intensity correlations of thermal light |
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| Authors: | T. Iskhakov A. Allevi D. A. Kalashnikov V. G. Sala M. Takeuchi M. Bondani M. Chekhova |
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| Affiliation: | 1.Max-Planck-Institute for the Science of light,Erlangen,Germany;2.Dipartimento di Fisica e Matematica,Università degli Studi dell’Insubria and C.N.I.S.M.,Como,Italy;3.Data Storage Institute,Agency for Science Technology and Research,Singapore,Singapore;4.Laboratoire Kastler Brossel, école Normale Supérieure,Université Pierre et Marie Curie-Paris 6 et CNRS, UPMC Case 74,Paris,France;5.Department of Arts and Sciences, Graduate School of Science,the University of Tokyo,Tokyo,Japan;6.Istituto di Fotonica e Nanotecnologie,Consiglio Nazionale delle Ricerche and C.N.I.S.M.,Como,Italy;7.M.V. Lomonosov Moscow State University,Moscow,Russia |
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| Abstract: | ![]()
We demonstrate measurement of normalized Glauber’s intensity correlation functions of different orders using an array photodetector. As the light source, we use a laser beam scattered by a rotating ground-glass disc, which has statistics close to that of thermal light. We compare the measurements of the normalized correlation functions to that of the difference-intensity variance and show that they are in a certain sense complementary. The independence of the variance measurement on the number of temporal modes has been demonstrated for the first time. Different versions of high-order ghost imaging are also realized and characterized quantitatively. |
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