The Decay Of Unstable Orientational States Of Nematic Liquid Crystals Interacting With A Laser Field

    Authors

    G. Cipparrone; D. Duca; C. Versace; C. Umeton;N. V. Tabiryan

    Comments

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    Abbreviated Journal Title

    J. Phys. I

    Keywords

    FREEDERICKSZ TRANSITION; MAGNETIC-FIELD; DYNAMICS; FLUCTUATIONS; LIGHT; Physics, Multidisciplinary

    Abstract

    We show that the rate of relaxation is an important characteristic of the dynamics of critical systems undergoing second order phase transition, which are, in fact, still in effective motion even after the order parameter is reaching its steady state value. As a model system, we investigate the instability of the orientational state of a nematic liquid crystal ached on by a laser field and present the measurement of the initial fluctuations that start up the decay of the unstable state.

    Journal Title

    Journal De Physique I

    Volume

    7

    Issue/Number

    9

    Publication Date

    1-1-1997

    Document Type

    Article

    Language

    English

    First Page

    1143

    Last Page

    1153

    WOS Identifier

    WOS:A1997XV36000009

    ISSN

    1155-4304

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