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Optics Letters

Optics Letters


  • Vol. 20, Iss. 11 — Jun. 1, 1995
  • pp: 1319–1321

Fixing of photorefractive volume holograms in K1−yLiyTa1−xO3

Victor Leyva, Doruk Engin, Xiaolin Tong, Min Tong, Amnon Yariv, and Aharon Agranat  »View Author Affiliations

Optics Letters, Vol. 20, Issue 11, pp. 1319-1321 (1995)

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We report the fixing of photorefractive holographic gratings with high efficiency in a sample of K1−yLiyTa1−xNbxO3 doped with Cu, V, and Ti. Holograms are thermally fixed through the screening of a photorefractive space-charge field by a nonphotoactive species at elevated temperatures. Fixed holograms are revealed by illumination at lower temperatures. Diffraction efficiencies of 25% in a 0.54-cm-thick sample are measured. Holograms undergo thermal decay with a 0.67-eV activation energy.

© 1995 Optical Society of America

Original Manuscript: December 23, 1994
Published: June 1, 1995

Victor Leyva, Doruk Engin, Aharon Agranat, Xiaolin Tong, Min Tong, and Amnon Yariv, "Fixing of photorefractive volume holograms in K1−yLiyTa1−xO3," Opt. Lett. 20, 1319-1321 (1995)

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