Acta Optica Sinica, Volume. 30, Issue 8, 2355(2010)
Laser-Induced Preferential Domain Nucleation in Hafnium-Doped Congruent LiNbO3 Crystal
The 514 nm visible laser-induced preferential domain nucleation effect is investigated in the 3% mole fraction hafnium-doped lithium niobate crystal.The local variation of phase distribution during the laser-induced preferential domain nucleation is in-situ recorded and is reconstructed by the digital holographic interferometry.The nucleation field decreases exponentially with increase of irradiation intensity.The space-charge field along Z direction has an important influence on the laser-induced preferential domain nucleation.According to the experimental results,a qualitative model for the laser-induced preferential domain nucleation process in lithium niobate crystal is presented.This model not only provides the essential information for the future optimization of laser-induced domain engineering,but also supplies the new experimental evidences for the future mechanism investigation of laser-induced domain nucleation in LiNbO3.
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Hou Peipei, Zhi Yanan, Liu Liren. Laser-Induced Preferential Domain Nucleation in Hafnium-Doped Congruent LiNbO3 Crystal[J]. Acta Optica Sinica, 2010, 30(8): 2355
Category: Materials
Received: Nov. 12, 2009
Accepted: --
Published Online: Aug. 13, 2010
The Author Email: Peipei Hou (houpeipei@siom.ac.cn)