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Optics Letters

Optics Letters


  • Vol. 29, Iss. 21 — Nov. 1, 2004
  • pp: 2476–2478

Electrical fixing in near-stoichiometric lithium niobate crystals

Helge A. Eggert, Benedikt Hecking, and Karsten Buse  »View Author Affiliations

Optics Letters, Vol. 29, Issue 21, pp. 2476-2478 (2004)

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Photorefractive gratings are recorded in lithium niobate crystals in the presence of externally applied electric fields close to the coercive field. After optical erasure a voltage pulse above the poling threshold is applied, and by these means a photorefractive grating reappears that can be erased optically. The results point to electrical fixing, i.e., ferroelectric domain reversal induced by a space-charge field.

© 2004 Optical Society of America

OCIS Codes
(090.2900) Holography : Optical storage materials
(160.2260) Materials : Ferroelectrics
(160.5320) Materials : Photorefractive materials

Helge A. Eggert, Benedikt Hecking, and Karsten Buse, "Electrical fixing in near-stoichiometric lithium niobate crystals," Opt. Lett. 29, 2476-2478 (2004)

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