Share Email Print
cover

Proceedings Paper

Determination of the dispersion of linear and quadratic electro-optic coefficients in thin films by electric field-induced modulated ellipsometry
Author(s): Pierre-Alain Chollet; Gregory Gadret; Francois Kajzar; Paul Raimond
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

An experimental method enabling a simultaneous determination of the linear and quadratic electro-optic coefficients in thin film is described. The technique is based on the interference between electric field induced modulation of transverse electric (TE) and transfer magnetic (TM) fields propagating through a stratified medium consisting on a substrate, semitransparent electrode, and the measured thin film. It allows us to determine both the real and the imaginary parts of corresponding electro-optic coefficients as well as their dispersion. The use of thin film enables both electro-optic coefficients measurements in the thin film absorption band allowing nonlinear spectroscopy studies. The technique is applied to a poled functionalized polymer thin film and the results are interpreted in terms of a two level model. This allows a determination of microscopic parameters such as: excited and fundamental state permanent dipole moment difference and transition moment between fundamental and first excited state. A presence of an excited state in the bottom of the absorption band is revealed.

Paper Details

Date Published: 15 May 1994
PDF: 14 pages
Proc. SPIE 2143, Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications, (15 May 1994); doi: 10.1117/12.173834
Show Author Affiliations
Pierre-Alain Chollet, Ctr. d'Etudes Nucleaires de Saclay (France)
Gregory Gadret, Ctr. d'Etudes Nucleaires de Saclay (France)
Francois Kajzar, Ctr. d'Etudes Nucleaires de Saclay (France)
Paul Raimond, Ctr. d'Etudes Nucleaires de Saclay (France)


Published in SPIE Proceedings Vol. 2143:
Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications
Seth R. Marder; Joseph W. Perry, Editor(s)

© SPIE. Terms of Use
Back to Top