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Applied Optics

Applied Optics


  • Vol. 37, Iss. 5 — Feb. 10, 1998
  • pp: 841–847

Electric-field multiplexing of volume holograms in paraelectric crystals

Michal Balberg, Meir Razvag, Eli Refaeli, and Aharon J. Agranat  »View Author Affiliations

Applied Optics, Vol. 37, Issue 5, pp. 841-847 (1998)

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Electric-field multiplexing (EFM) results from the tuning of the effective wavelength of the light beam inside a photorefractive crystal. This tuning results from the application of an external electric field to the crystal during holographic recording. We demonstrate the high Bragg selectivity of this multiplexing technique in paraelectric crystals and compare it with the selectivity obtained in the ferroelectric phase. The effects of the two major physical parameters of working in the paraelectric phase, the temperature and the external electric field applied during the writing stage, are investigated. Experimental results of the EFM of three image-bearing holograms recorded in reflection geometry are presented along with a qualitative analysis of the Bragg selectivity in paraelectric crystals.

© 1998 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.4220) Holography : Multiplex holography

Original Manuscript: August 20, 1997
Revised Manuscript: October 17, 1997
Published: February 10, 1998

Michal Balberg, Meir Razvag, Eli Refaeli, and Aharon J. Agranat, "Electric-field multiplexing of volume holograms in paraelectric crystals," Appl. Opt. 37, 841-847 (1998)

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