Dipolar photorefractive gratings in paraelectric K1−xLixTa1−yNbyO3

Meir Razvag; Michal Balberg; Aharon J. Agranat

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 1996),
paper CFA6

Dipolar photorefractive gratings in paraelectric K₁₋_xLi_xTa₁₋_yNb_yO₃

Meir Razvag, Michal Balberg, and Aharon J. Agranat

Conference on Lasers and Electro-Optics 1996

Anaheim, California United States
2–7 June 1996
ISBN: 1-55752-443-2

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Photorefractive Materials and Applications (CFA)

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M. Razvag, M. Balberg, and A. J. Agranat, "Dipolar photorefractive gratings in paraelectric K1−xLixTa1−yNbyO3," in Conference on Lasers and Electro-Optics, J. Bowers, D. Miller, D. Scifres, and A. Weiner, eds., Vol. 9 of OSA Technical Digest (Optica Publishing Group, 1996), paper CFA6.

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Abstract

We henceforth present experimental results indicating that the photorefractive (PR) space-charge gratings, formed in the paraeiectric phase, induce dipolar gratings that are not erased by direct illumination. The experiments were done using potassium lithium tantalate niobate (KLTN),¹ with a phase transition at T_c = 170 K.

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