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Fixing of volume holograms in ferroelectric K_(1-y)Li_yTa_(1-x)Nb_xO_3

Tong, Xiaolin and Hofmeister, Rudolf and Zhang, Min and Yariv, Amnon and Agranat, Aharon and Leyva, Victor (1996) Fixing of volume holograms in ferroelectric K_(1-y)Li_yTa_(1-x)Nb_xO_3. Optics Letters, 21 (22). pp. 1860-1862. ISSN 0146-9592.

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We report on the fixing of photorefractive volume holograms in potassium lithium tantalate niobate with ionic gratings and also with ferroelectric domain-reversed gratings. A diffraction efficiency of 55% is obtained with domain reversal in a 2-mm-thick ferroelectric phase K1–yLiyTa1–xNbxO3 crystal doped with Co, V, and Ti. We measured the decay rate of the domain gratings and also of the initial electron gratings and ion gratings. The domain grating decay agrees with Vogel–Fulcher fits. The activation energies for ionic and electronic conductivity are 0.76 and 0.12 eV, respectively.

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Additional Information:© 1996 Optical Society of America. Received June 13, 1996. The authors acknowledge the support of the Advanced Research Projects Agency University Research Initiative under U.S. Office of Naval Research grant N00014-920J-1891.
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Advanced Research Projects Agency (ARPA)UNSPECIFIED
Office of Naval Research (ONR)N00014-920J-1891
Issue or Number:22
Record Number:CaltechAUTHORS:TONol96
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ID Code:2840
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Deposited On:03 May 2006
Last Modified:02 Oct 2019 22:57

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