Space intensity correlations in the near field of the scattered light: A direct measurement of the density correlation function g(r)

We show that the two point intensity correlation in the near field of the scattered light is directly related to the two point density correlation g(r). Preliminary measurements on two sets of calibrated random pinholes of 140 and 300 m diameters, and on aqueous solutions of latex spheres of 5, 10,...

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Bibliographic Details
Published inPhysical review letters Vol. 85; no. 7; p. 1416
Main Authors Giglio, M, Carpineti, M, Vailati, A
Format Journal Article
LanguageEnglish
Published United States 14.08.2000
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Summary:We show that the two point intensity correlation in the near field of the scattered light is directly related to the two point density correlation g(r). Preliminary measurements on two sets of calibrated random pinholes of 140 and 300 m diameters, and on aqueous solutions of latex spheres of 5, 10, and 40 m are reported. A discussion on the desirability of the technique as a simple and powerful alternative to low angle scattering will be presented.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.85.1416