Leyva, Victor and Engin, Doruk and Tong, Xiaolin and Tong, Min and Yariv, Amnon and Agranat, Aharon (1995) Fixing of photorefractive volume holograms in K1-yLiyTa1-xO3. Optics Letters, 20 (11). pp. 1319-1321. ISSN 0146-9592. http://resolver.caltech.edu/CaltechAUTHORS:LEYol95
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We report the f ixing of photorefractive holographic gratings with high eff iciency 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.
|Additional Information:||© 1995 Optical Society of America Received December 23, 1994 The authors acknowledge the support of the Advanced Research Projects Agency University Research Initiative under U.S. Office of Naval Research grant N00014-92-J-1891|
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|Deposited On:||03 May 2006|
|Last Modified:||26 Dec 2012 08:51|
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