We studied the diffraction halo function of partially coherent speckle photography, using the theory of partial coherence of light and speckle statistics. Numerical calculations were made on the basis of the derived expression. It was shown that the anisotropic coherence of the illumination induced by the source could lead to the inhomogeneity of the halo distribution. An experiment was performed to prove the theoretical predictions.
© 1999 Optical Society of America
(030.6140) Coherence and statistical optics : Speckle
(070.2590) Fourier optics and signal processing : ABCD transforms
(110.4980) Imaging systems : Partial coherence in imaging
(120.6150) Instrumentation, measurement, and metrology : Speckle imaging
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry
Chuanfu Cheng, Wenxian Liu, and Weiling Gui, "Diffraction halo function of partially coherent speckle photography," Appl. Opt. 38, 6687-6691 (1999)