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Domain formation and expansion during periodic poling of congruent $LiNbO_3$ using external field  

Kwon, S.W. (Department of Materials Engineering, Hankuk Aviation University)
Yang, W.S. (Nano Bio-photonics Team, Korea Electronics Technology Institute)
Lee, H.M. (Nano Bio-photonics Team, Korea Electronics Technology Institute)
Kim, W.K. (Nano Bio-photonics Team, Korea Electronics Technology Institute)
Lee, H.Y. (Nano Bio-photonics Team, Korea Electronics Technology Institute)
Yoon, D.H. (Department of Advanced Material Engineering, Sungkyunkwan University)
Song, Y.S. (Department of Materials Engineering, Hankuk Aviation University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.16, no.2, 2006 , pp. 53-58 More about this Journal
Abstract
When external field was applied to congruent $LiNbO_3$, it was investgated for domain formation and expansion of $LiNbO_3$. The domain wall velocities of 0.5 mm thickness $LiNbO_3$ were 28.70, 16.02 and $5.75{\mu}m/sec$ under poling field of 23.5, 22.0 and 21.0 kV/mm, respectively. As $1 M{\Omega}$ resistor was used in domain inversion system, harmonic domain inversion was not achieved by rapid domain expansion. And 50% duty cycle periodically poled $LiNbO_3$ have been fabricated by charge control using $10 M{\Omega}$ resistor.
Keywords
Periodically poled lithium niobate; Coercive field; Duty cycle; Domain wall velocity; Quasi phase matching;
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