MEASUREMENT OF THE LINEAR ELECTROOPTIC EFFECT IN POLED POLYMER THIN-FILMS WITH COPLANAR ELECTRODES

The linear electrooptic (EO) effect of poled polymer thin film is meas ured in the coplanar-electrode structure. The optical geometry of the coplanar-electrode thin-film setup is analysed theoretically to find a relationship between the linear optical parameters and the EO modulat ion intensity. EO modulated intensity is measured as a function of the direction of incident light polarization relative to the macroscopic optic axis, also as a function of optical bias determined by quarter-w ave plate. Comparison of experimental measurements with the theoretica l analysis shows good agreement.