title: On a relationship between spectral properties and spatial coherence properties of light.
abstract: It is shown that the cross-spectral density and the spectrum of a fluctuating, statistically stationary free optical field may be obtained from the knowledge of its spatial coherence properties. Explicit expressions for the cross-spectral density and for the spectrum are derived in terms of the mutual intensity function of the field.
authors.forename: E
authors.initials: E
authors.lastname: Wolf
authors.forename: A J
authors.initials: AJ
authors.lastname: Devaney