Abstract
Expressions are derived for both the radiant intensity and the far-field spectrum produced by a three-dimensional, anistropic gaussian Schell-model source. On the basis of the spectrum expression, the shift of the spectral line on light propagation is investigated in some detail with reference to the correlation-induced spectral changes of the Wolf effect. As some numerical examples, the spectral shifts are illustrated in a polar diagram as a function of the observation angle. It is found from the figure that the angular distribution of the shift varies depending strongly on the three-dimensional anisotropy of the source.
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