Investigation of the Electro-optic and Dielectric Properties of Epitaxial Ferroelectric Thin Films

Download or read book Investigation of the Electro-optic and Dielectric Properties of Epitaxial Ferroelectric Thin Films written by Brent Harold Hoerman and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The electro-optic properties of epitaxial BaTiO3 and KTa xNb1-xO3 thin films were investigated to determine their utility as the active medium in electro-optic (EO) devices. The relationship between the EO properties, both static and dynamic, and the ferroelectric (FE) domain structure of the films was determined. A theoretical model was developed to describe the magnitude and dynamic response of the EO effect and dielectric properties of multidomain FE films. The effective linear EO coefficient of each film, reff, was modeled as a linear superposition of the EO response of each FE domain variant, and the dynamic EO response was described in terms of a statistical distribution of domain relaxation times.