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Opt Lett. 2007 Dec 15;32(24):3531-3.

Devising genuine spatial correlation functions.

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1
Università Roma Tre, Dipartimento di Fisica, and CNISM, Via della Vasca Navale 84, I-00146 Rome, Italy. gori@uniroma3.it

Abstract

The choice of the mathematical form of spatial correlation functions for optical fields is restricted by the constraint of nonnegative definiteness. We discuss a sufficient condition for ensuring the satisfaction of such a constraint.

PMID:
18087532
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