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Proceedings Paper

Photorefractive Properties Of KTa1-xNbxO3 In The Paraelectric Phase
Author(s): Aharon Agranat; Victor Leyva; Koichi Sayano; Amnon Yariv
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Paper Abstract

We report the growth of doped Potassium Tantalate Niobate (KTN) crystals, and the characterization of their photorefractive properties L. the paraelectric region. First the Top Seeded Solution Growth Method is reviewed and the growth process of a KTN:Cu,V crystal is described. Results of diffraction efficiency measurements of photorefractive gratings in these crystals at the paraelectric phase, are then presented. These experiments show high diffractio- efficiencies, and indicate the possibility of amplitude modulation of the gratings by an external field. Results showing fixation of the gratings when the sample is close to the phase transition temperature are also described.

Paper Details

Date Published: 4 January 1990
PDF: 15 pages
Proc. SPIE 1148, Nonlinear Optical Properties of Materials, (4 January 1990); doi: 10.1117/12.962143
Show Author Affiliations
Aharon Agranat, Caltech (United States)
Victor Leyva, Caltech (United States)
Koichi Sayano, Caltech (United States)
Amnon Yariv, Caltech (United States)


Published in SPIE Proceedings Vol. 1148:
Nonlinear Optical Properties of Materials
Howard R. Schlossberg; Raymond V. Wick, Editor(s)

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