Comparison of domain reversal and electro-optic properties of congruent and stoichiometric lithium tantalate

Lili Tian; Venkatraman Gopalan

doi:10.1117/12.591877

31 March 2005 Comparison of domain reversal and electro-optic properties of congruent and stoichiometric lithium tantalate

Lili Tian, Venkatraman Gopalan

Author Affiliations +

Proceedings Volume 5728, Integrated Optics: Devices, Materials, and Technologies IX; (2005) https://doi.org/10.1117/12.591877
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

A change in the Li/(Li+Ta) ratio in LiTaO₃ crystals from 0.485 (congruent) to ~0.5 (stoichiometric) results in a up to 130 times reduction in coercive fields for domain reversal and an elimination of the internal fields and domain backswitching. Dramatic differences in the fatigue behavior are also observed, that results in an electro-optic effect that is very sensitive to electrodes in stoichiometric compositions and rather insensitive in congruent compositions.

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Lili Tian and Venkatraman Gopalan "Comparison of domain reversal and electro-optic properties of congruent and stoichiometric lithium tantalate", Proc. SPIE 5728, Integrated Optics: Devices, Materials, and Technologies IX, (31 March 2005); https://doi.org/10.1117/12.591877

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