Electro-optic characteristics of (001)-oriented Ba0.6Sr0.4TiO3 thin films

Abstract

Ba0.6Sr0.4TiO3 thin films were grown on MgO(001) substrates using pulsed-laser deposition. The films were highly oriented along the (001) direction, and showed a high electro-optic response to an external electric field. The quadratic electro-optic coefficient R-c was 1.0x10(-14) m(2)/V-2, and the birefringence variation was as large as 0.09. Various electro-optic applications as well as the microwave applications of barium strontium titanate thin films are expected. (C) 2003 American Institute of Physics.