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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 15, Iss. 4 — Apr. 1, 1998
  • pp: 1353–1361

Dynamics of novelty filtering and edge enhancement in cobalt-doped barium titanate

Pierre Mathey, Bénédicte Mazué, Pierre Jullien, and Daniel Rytz  »View Author Affiliations

JOSA B, Vol. 15, Issue 4, pp. 1353-1361 (1998)

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A compact photorefractive optical novelty filter is presented. Its two main components, the nonlinear photorefractive crystal and the spatial light modulator, are characterized. It is shown that, for this application, the involved BaTiO3:Co crystal is more efficient than a nominally undoped BaTiO3. It is demonstrated that the spatial light modulator alters the wave-mixing performance. The cut frequency of a cyclic event detection is measured versus the incident intensity. The agreement with previously developed theories about edge-enhancement characteristics is satisfactory.

© 1998 Optical Society of America

OCIS Codes
(160.5320) Materials : Photorefractive materials
(190.7070) Nonlinear optics : Two-wave mixing
(230.6120) Optical devices : Spatial light modulators
(260.2160) Physical optics : Energy transfer
(330.4150) Vision, color, and visual optics : Motion detection

Pierre Mathey, Bénédicte Mazué, Pierre Jullien, and Daniel Rytz, "Dynamics of novelty filtering and edge enhancement in cobalt-doped barium titanate," J. Opt. Soc. Am. B 15, 1353-1361 (1998)

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