Red Laser-Induced Domain Inversion in MgO-Doped Lithium Niobate Crystals

A laser beam at wavelength 647 nm is focused on a sample of 5 mol% MgO-doped lithium niobate crystal for domain inversion by a conventional external electric field. In this case, a reduction of 36% in the electric field required for domain nucleation (nucleation field) is observed. To the best of ou...

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Bibliographic Details
Published inChinese physics letters Vol. 24; no. 4; pp. 971 - 974
Main Authors Da-Shan, Li, De-An, Liu, Ya-Nan, Zhi, Wei-Juan, Qu, Li-Ren, Liu, Juan, Zhang
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.04.2007
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Summary:A laser beam at wavelength 647 nm is focused on a sample of 5 mol% MgO-doped lithium niobate crystal for domain inversion by a conventional external electric field. In this case, a reduction of 36% in the electric field required for domain nucleation (nucleation field) is observed. To the best of our knowledge, it is the longest wavelength reported for laser-induced domain inversion. This extends the spectrum of laser inducing, and the experimental results are helpful to understand the nucleation dynamics under laser illumination. The dependence of nucleation fields on intensities of laser beams is analysed in experiments.
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/24/4/034