Title :
Birefringent light scattering in PLZT ceramics
Author :
Ivey, Mark D. ; Bolie, Victor W.
Author_Institution :
New Mexico Univ., Albuquerque, NM, USA
Abstract :
A model for visible light scattering in thin, ferroelectric ceramic plates is presented. This and other previously published models are compared with experimental results. An expression for scattered light intensity over exit angle is developed on the basis of multiple refraction from randomly oriented grain and domain walls in a birefringent medium and is compared to measurements of longitudinal-mode light scattering from thin ( approximately 250-650- mu m) PLZT plates of three different ceramic compositions. The characteristic differences in the observed light scattering are attributed to two physical mechanisms that are related to field-induced ferroelectric anisotropies.<>
Keywords :
birefringence; ceramics; electric domain walls; ferroelectric materials; grain boundaries; lanthanum compounds; lead compounds; light refraction; light scattering; visible spectra of inorganic solids; PLZT ceramics; PbLaZrO3TiO3; birefringent medium; domain walls; exit angle; field-induced ferroelectric anisotropies; longitudinal-mode light scattering; multiple refraction; physical mechanisms; randomly oriented grain walls; scattered light intensity; thin ferroelectric ceramic plates; visible light scattering; Birefringence; Ceramics; Composite materials; Ferroelectric materials; Image storage; Impurities; Light scattering; Optical materials; Optical refraction; Optical scattering;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
