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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 68, Iss. 7 — Jul. 1, 1978
  • pp: 931–934

Degradation of holographic images due to depolarization of reflected light

Hossein Ghandeharian and Wolfgang M. Boerner  »View Author Affiliations

JOSA, Vol. 68, Issue 7, pp. 931-934 (1978)

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The effects on image quality due to polarization changes of the illuminating beam after scattering by an object are studied. These effects include a decrease in signal-to-noise ratio (decrease in fringe visibility) of the hologram and, for an extended object, a loss of information of those segments of the object that have large curvature (edges, discontinuities, etc.). The autocorrelation function of the transmittance of a nonlinearly recorded hologram of a diffuse object is obtained. It is shown that the change of polarization of the illuminating beam by the object not only reduces the signal-to-noise ratio but also fortifies the distortion of the images due to the nonlinearity of the recording medium. This new distorting effect, which appears as a multiplicative factor, is dependent on the irradiance distribution of the object’s cross-polarized component. A simple way of decreasing the above-mentioned degradation effects is suggested.

© 1978 Optical Society of America

Hossein Ghandeharian and Wolfgang M. Boerner, "Degradation of holographic images due to depolarization of reflected light," J. Opt. Soc. Am. 68, 931-934 (1978)

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