有機ナノデバイス研究グループ:Abstract

Transmission ellipsometric method without an aperture
for simple and reliable evaluation of electro-optic properties
under various ambient conditions


Toshiki Yamada , Akira Otomo


Abstract:

A transmission ellipsometric method has been reformed without a spatial filtering aperture to characterize electro-optic (EO) performance of EO polymers. This method affords much simpler optical setup compared to the reflection method, and lets us easily perform detailed incident angle dependence measurements using a conventional glass substrate and an uncollimated beam. It is demonstrated that the reliable characterization with this method is possible in combination with a simple data analysis. By using the recently matured deposition technique of indium zinc oxide (IZO) on soft materials, it is possible to prepare the EO polymer sandwiched between two transparent electrodes. Thus the transmission method should be reevaluated.


doi:10.1364/OE.21.029240