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Applied Optics

Applied Optics


  • Vol. 20, Iss. 9 — May. 1, 1981
  • pp: 1719–1723

Image contrast reversal with a photorefractive recording medium

R. Grousson and S. Mallick  »View Author Affiliations

Applied Optics, Vol. 20, Issue 9, pp. 1719-1723 (1981)

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Images with partial and complete contrast reversal have been retrieved from a single image recorded in a lithium niobate crystal. The input image, a grey tone transparency, is modulated with the help of two diffracted orders of a Ronchi ruling. The same two orders are used to read the crystal. The relative amplitude of these orders is altered with the help of a linear polarizer, and this produces variable tones in the output image. Partially coherent light can be used at both the writing and the reading stages.

© 1981 Optical Society of America

Original Manuscript: December 5, 1980
Published: May 1, 1981

R. Grousson and S. Mallick, "Image contrast reversal with a photorefractive recording medium," Appl. Opt. 20, 1719-1723 (1981)

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