Electro-optical properties of strontium-barium niobate crystals and their relation to the domain structure of the crystals |
| |
Authors: | T R Volk N R Ivanov D V Isakov L I Ivleva P A Lykov |
| |
Institution: | (1) Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 119333, Russia;(2) Scientific Center of Laser Materials and Technologies, Institute of General Physics, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 117942, Russia |
| |
Abstract: | The electro-optical coefficients r ij and half-wave voltage Vλ/2 of strontium-barium niobate crystals poled in the ferroelectric phase are shown to vary along the polar axis. The r ij (z) and Vλ/2(z) dependences indicate the presence of a residual domain density D(z) and clearly depend on the sign of the polarizing field, with r ij being minimum (D being maximum) near the negative electrode. This character of the D(z) distribution and, hence, the r ij (z) and Vλ/2(z) coordinate dependences can be explained by predominant domain nucleation near the negative electrode, which is revealed when the switching processes are studied using 90° (Rayleigh) light scattering from domain walls. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|