Polarization Dependent Resonant Thg On Langmuir-Blodgett Multilayers Of Rod-Like Polysilanes During Annealing

    Authors

    S. Mittlerneher; D. Neher; G. I. Stegeman; F. W. Embs;G. Wegner

    Comments

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    Abbreviated Journal Title

    Chem. Phys.

    Keywords

    Nonlinear Optical Susceptibilities; High Polymers; Thin-Films; Chemistry, Physical; Physics, Atomic, Molecular & Chemical

    Abstract

    The order parameters describing the two-dimensional orientation of rod-like poly[bis(m-butoxyphenyl)silane] molecules in Langmuir-Blodgett multilayers are determined via polarization dependent resonant third-harmonic generation. The nature of the local field factor for the polysilane backbone is determined by analyzing the phase of chi(3). By investigating the imaginary part of chi(3) we were able to isolate the first and second nontrivial order parameters C2 an C4 describing the orientation of the rod-like polysilane backbone only. Annealing the LB film subsequent to deposition increases both order parameters but does not change the local field factor.

    Journal Title

    Chemical Physics

    Volume

    161

    Issue/Number

    1-2

    Publication Date

    1-1-1992

    Document Type

    Article

    Language

    English

    First Page

    289

    Last Page

    297

    WOS Identifier

    WOS:A1992HL69800026

    ISSN

    0301-0104

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