Influence of the Continuous Application of an External DC Electric Field on Chromophore Orientations of Low T_g-photorefractive Polymers

Abstract

The influence of the continuous DC electric field on the chromophore orientations is investigated in a typical PVK based photorefractive polymer. The result from the modulation measurement with stabilized Mach-Zehnder interferometer shows that the degree of the chromophore orientation is not deteriorated by the migration of carrier in the case of our sample.

Keywords:

• Photorefractive polymer
• Refractive index change
• Mach-Zehnder interferometer
• Coercive field
• Carrier migration

Acknolegment

This work has been sponsored by the program for S-innovation (Strategic Promotion of innovative Research and Development), Japan Science and Technology (JST).