Abstract
Second-order spatial coherence properties of radiation fields are usually determined from measurements of the visibility of fringes in suitable interference experiments.1 In recent years it was demonstrated that spatial coherence properties of sources affect the spectrum of emitted radiation.2 In this paper, we show that such spectral modifications may be utilized to provide a new method for determining spatial coherence properties of fields. We also establish a theorem that applies to sources of a large class, according to which a tradeoff between spatial separation and spectral information is possible in some two-point correlation experiments.
© 1991 Optical Society of America
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