Abstract
A theoretical analysis based on statistical optics is presented for the diffraction halo functions of random speckle patterns either generated by a coherent source such as a laser or artificially created and illuminated by an incoherent radiation such as white light. It is shown that for a coherent speckle pattern the halo function is given by the autocorrelation of the squared aperture function of the recording system, whereas for a incoherent speckle pattern it is governed by the squared autocorrelation of the aperture function.
© 1985 Optical Society of America
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