Usefulness of Transmission Ellipsometric Method for Evaluation of Electro-optic Materials

Toshiki YAMADA  Akira OTOMO  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E98-C   No.2   pp.143-146
Publication Date: 2015/02/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E98.C.143
Type of Manuscript: BRIEF PAPER
Category: 
Keyword: 
electro-optic polymers,  LiTaO3,  transmission ellipsometric method,  electro-optic coefficients,  anisotropic materials,  

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Summary: 
A transmission ellipsometric method without an aperture was recently developed to characterize the electro-optic (EO) performance of EO polymers. The method permits much simpler optical setup compared to the reflection method, and allows easy performance of the incident angle dependence measurements using a conventional glass substrate and uncollimated beam. This paper shows the usefulness of this method for a simple and reliable evaluation of the EO coefficient both for organic and inorganic EO materials, as well as analysis for uniaxial anisotropic materials.