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Proceedings Paper

Thermally stimulated current and electro-optic responses in stable photorefractive polymers
Author(s): Tetsuya Aoyama; Takafumi Sassa; Hiroyuki Sasabe; Tatsuo Wada
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Paper Abstract

The polarization and depolarization behavior of electric field-induced polar alignment in a stable photorefractive polymer containing carbazole was measured by thermally stimulated current (TSC) and electro-optic (EO) modulation experiments. A relaxation peak was observed around the glass transition temperature (Tg) for the poled photorefractive polymer in a TSC experiment. The apparent TSC was not observed at room temperature. The polarization calculated from the relaxation peak linearly increased with the strength of the poling electric field. This result was consistent with the EO behavior which showed the linear dependence of the EO coefficients on the poling electric field. The polar alignment induced by the electric field at an elevated temperature was stable at room temperature, which could lead to the long-term stability of the photorefractive responses without an external applied electric field.

Paper Details

Date Published: 16 January 2002
PDF: 8 pages
Proc. SPIE 4462, Nonlinear Optical Transmission Processes and Organic Photorefractive Materials, (16 January 2002); doi: 10.1117/12.452733
Show Author Affiliations
Tetsuya Aoyama, RIKEN-The Institute of Physical and Chemical Research (Japan)
Takafumi Sassa, RIKEN-The Institute of Physical and Chemical Research (Japan)
Hiroyuki Sasabe, Chitose Institute Science & Technology (Japan)
Tatsuo Wada, RIKEN-The Institute of Physical and Chemical Research (Japan)


Published in SPIE Proceedings Vol. 4462:
Nonlinear Optical Transmission Processes and Organic Photorefractive Materials
Christopher M. Lawson; Klaus Meerholz, Editor(s)

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