Optimization of the efficiencies of photorefractive polymers: Correlations between viscoelastic properties and electro-optical responses

Jean Charles Maurice Ribierre, Loic Mager, Stéphane Mery, Alain Fort

    Research output: Contribution to journalConference articlepeer-review

    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 rheological 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.

    Original languageEnglish
    Pages (from-to)1-9
    Number of pages9
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Volume4918
    DOIs
    Publication statusPublished - Jan 1 2002
    EventMaterials, Devices, and Systems for Display and Lighting - Shanghai, China
    Duration: Oct 15 2002Oct 17 2002

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

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