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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 69, Iss. 6 — Jun. 1, 1979
  • pp: 877–882

Study of laser speckles in the presence of spherical aberration

R. D. Bahuguna, K. K. Gupta, and K. Singh  »View Author Affiliations

JOSA, Vol. 69, Issue 6, pp. 877-882 (1979)

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It has been observed that in case of an imaging geometry, the speckle size and shape depend upon the aberrations, provided the scattering spot size is smaller than the point-spread function of the optical system. In the presence of spherical aberration the speckle pattern becomes radially streaky. Photographs of the patterns at paraxial, marginal, least-confusion, and defocused planes are given. When the diffuser is given a translatory motion the speckle at a point in the observation plane moves along the shadow of a knife edge (with its edge parallel to the direction of translation) placed at a suitable position in the pupil plane. Experiments with the atropinized eye also yielded the same results. A heuristic explanation for these results is included.

© 1979 Optical Society of America

R. D. Bahuguna, K. K. Gupta, and K. Singh, "Study of laser speckles in the presence of spherical aberration," J. Opt. Soc. Am. 69, 877-882 (1979)

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  1. J. W. Goodman, "Statistical properties of lasers speckle pattern," in Topics in Applied Physics, Vol. 9. Laser Speckle and Related Phenomena, edited by J. C. Dainty (Springer-Verlag, Berlin 1975), pp. 9–75.
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  7. H. H. Emsley, Visual Optics (Butterworths, London, 1977) 5th ed. p. 414.
  8. R. D. Bahuguna, K. K. Gupta, and K. Singh, "Some psychophysical experiments using diffraction patterns," (unpublished).

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