【摘 要】
：
The domain reversal characteristics of near-stoichiometric LiNbO3 ([Li]/[Li＋Nb]＝0.496) single crystals, which are grown by the Czochralski method with K2O tlux, a
【机 构】
：
Photonics Research Center, Nankai University, Tianjin 300071；National Laboratory for Infrared Physic
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The domain reversal characteristics of near-stoichiometric LiNbO3 ([Li]/[Li＋Nb]＝0.496) single crystals, which are grown by the Czochralski method with K2O tlux, are investigated. The switch tield for 180° ferroelectric domain reversal in the near-stoichiometric LiNbO3 crystal is 8.0±0.5kV/mm, which is only one third of the switching field required for the congruent LiNbO3 crystals. We have successfully achieved 180° domain reversal in near-stoichiometric LiNbO3 samples of 1.0mm thickness.
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