Open AccessUsing coherence to measure two-time correlation functions
Author(s) -
M. Sutton,
Khalid Laaziri,
F. Livet,
F. Bley
Publication year - 2003
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.002268
Subject(s) - coherence (philosophical gambling strategy) , speckle pattern , measure (data warehouse) , optics , coherence theory , spectroscopy , intensity (physics) , statistical physics , correlation , physics , materials science , coherence length , mathematics , quantum mechanics , computer science , superconductivity , geometry , database
An introduction to x-ray intensity fluctuation spectroscopy is given by describing its relationship to speckle from coherent sources. Its use to measure two-time correlation functions is demonstrated using the equilibrium fluctuations of gold colloids in polystyrene and for non-equilibrium fluctuations in the unmixing below the miscibility gap in AlLi.