Fixing of photorefractive volume holograms in K1-yLiyTa1-xO3

Victor Leyva, Doruk Engin, Xiaolin Tong, Min Tong, Amnon Yariv, Aharon Agranat

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


We report the f ixing of photorefractive holographic gratings with high eff iciency in a sample of K12yLiyTa12xNbxO3 doped with Cu, V, and Ti. Holograms are thermally fixed through the screening of a photorefractive space-charge f ield 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.

Original languageAmerican English
Pages (from-to)1319-1321
Number of pages3
JournalOptics Letters
Issue number11
StatePublished - Jun 1995


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