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Optical and Electro-Optic Properties Of Highly Oriented (Sr,Ba)Nb2O6 Thin Films Prepared by Sol-Gel Process

Published online by Cambridge University Press:  10 February 2011

Junmo Koo ,
Jae Hyeok Jang  and
Byeong-Soo Bae
Junmo Koo
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejon, 305-701, Korea, s_mong@cais.kaist.ac.kr
Jae Hyeok Jang
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejon, 305-701, Korea, s_mong@cais.kaist.ac.kr
Byeong-Soo Bae
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejon, 305-701, Korea, s_mong@cais.kaist.ac.kr
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Abstract

Highly c-axis oriented SBN thin films with various compositions were obtained on MgO(100) and Pt(100)/MgO(100) substrates. The anisotropy of refractive indices (no and nc) of c-axis preferred oriented films on MgO(100) substrates decreases certainly as Sr content in the film composition increases. The optical propagation loss of the films decreases with increasing Sr content due to the reduction of the optical scattering by the anisotropy of refractive indices. The oriented films show the linear electro-optic effect with large electro-optic coefficients. The coefficient of the films increases as the Sr content increases because the linear electro-optic coefficient is dependent on the spontaneous polarization and the dielectric constant of the films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 597: Symposium PP – Thin Films for Optical Waveguide Devices & Materials … , 1999 , 189
Copyright
Copyright © Materials Research Society 2000

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