Abstract
The focused visible laser-induced preferential domain nucleation effect is investigated in 3 mol% hafnium-doped congruent lithium niobate crystal. The local phase variation is in-situ monitored during laser-induced preferential domain nucleation. The variations of phase distributions are reconstructed by digital holographic interferometry. The nucleation field decreases exponentially with increasing irradiation intensity. The space charge field along the z direction is thought to be an important mechanism for the laser-induced preferential domain nucleation. Laser-induced hafnium-doped congruent lithium niobate crystals appear to be a promising candidate for further development of ferroelectric domain engineering.
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Hou, P., Zhi, Y. & Liu, L. Laser-induced preferential domain nucleation in hafnium-doped congruent lithium niobate crystal. Appl. Phys. A 99, 105–109 (2010). https://doi.org/10.1007/s00339-009-5520-8
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DOI: https://doi.org/10.1007/s00339-009-5520-8