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Proceedings Paper

Optimization of the efficiencies of photorefractive polymers: correlations between visoelastic properties and electro-optical responses
Author(s): Jean-Charles Ribierre; Loic Mager; Stephane Mery; Alain F. Fort
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Paper Abstract

The photorefractive properties of low glass transition temperature (Tg) doped polymers are essentially ruled by the ability of the push-pull chromophores to align along the electric field. Therefore,a high rotational mobility is therefore needed for these non linear optical chromophores incorporated in the matrix. However, even if the influence of Tg on the photorefractive performances of guest-host polymers has been previously pointed out, this unique parameter is not sufficient to take into account the viscoelastic properties of the matrices. A complete study of the orientational dynamics of chromophores in various low Tg doped polymers, investigated by dielectric spectroscopy, second harmonic generation and electrooptical dynamical measurements, is presented. The results are fully interpreted and modeled by rheologic laws used to describe the viscoelastic behavior of polymers. Finally, the influence of the average molecular weight is also analyzed and then demonstrates the interest of using low molecular weight polymers.

Paper Details

Date Published: 17 September 2002
PDF: 9 pages
Proc. SPIE 4918, Materials, Devices, and Systems for Display and Lighting, (17 September 2002); doi: 10.1117/12.483059
Show Author Affiliations
Jean-Charles Ribierre, Institut de Physique et Chimie des Materiaux de Strasbourg (France)
Loic Mager, Institut de Physique et Chimie des Materiaux de Strasbourg (France)
Stephane Mery, Institut de Physique et Chimie des Materiaux de Strasbourg (France)
Alain F. Fort, Institut de Physique et Chimie des Materiaux de Strasbourg (France)


Published in SPIE Proceedings Vol. 4918:
Materials, Devices, and Systems for Display and Lighting
Fuxi Gan; Ming Hsien Wu; Lionel C. Kimerling, Editor(s)

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