Open AccessStudy on switching current of periodic poling LiNbO3 by applying external field
Author(s) -
Jianhua Chen,
Qu Shao-Bo,
Wei Xiao-Yong,
Zhifei Xu,
Zhu Lin-hu
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.554
Subject(s) - poling , nucleation , materials science , field (mathematics) , optics , pulse (music) , square wave , current (fluid) , domain (mathematical analysis) , condensed matter physics , optoelectronics , physics , voltage , mathematics , detector , dielectric , pure mathematics , ferroelectricity , thermodynamics , mathematical analysis , quantum mechanics
Periodically poled LiNbO3 was prepared by applying external field. Through a comparison study on switching currents of different sized PPLN, a new method of determining the nucleation time and the velocity of domain tip propagation toward the opposite face of the crystal was proposed. According to this method, a conclusion could be drawn that the nucleation time is 80ns and the tip velocity of switching domain is 0.1667m/s, when the external field is 25.1kV/mm, 50ms square wave pulse.