Title :
Mobility effects in polarization switching of lithium niobates
Author :
Peng, L.-H. ; Lin, Yu-Chen ; Fang, Yi-Chin
Author_Institution :
Graduate Inst. of Electro-Opt. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Summary form only given. Quasi-phase-matching (QPM) of ferroelectric crystals with periodically 180/spl deg/ inverted domain structures has emerged as an important technology for nonlinear frequency generation. We report a use of transient current analysis to investigate the kinetics of polarization switching in congruent grown Z-cut lithium niobate (LiNbO/sub 3/) at various field strength and poling direction. Our study indicates the axial anisotropy and the linear dependence of switching current and 1/switching time on E are due to a field-driven sidewise 180/spl deg/ domain motion.
Keywords :
dielectric polarisation; lithium compounds; optical harmonic generation; optical materials; optical phase matching; optical switches; 1/switching time; LiNbO/sub 3/; Z-cut; congruent grown; ferroelectric crystals; field strength; field-driven sidewise 180/spl deg/ domain motion; linear dependence; lithium niobates; mobility effects; nonlinear frequency generation; periodically 180/spl deg/ inverted domain structures; polarization switching kinetics; poling direction; quasi-phase-matching; switching current; transient current analysis; Anisotropic magnetoresistance; Crystals; Electronic mail; Etching; Ferroelectric materials; Kinetic theory; Lithium niobate; Niobium compounds; Optical polarization; Transient analysis;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-595-1
DOI :
10.1109/CLEO.1999.834430
