Microscopic calculations of linear and quadratic optical response in model Langmuir-Blodgett multilayers

M. In Het Panhuis, R. W. Munn

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Microscopic calculations are reported of linear and quadratic nonlinear optical response in Langmuir-Blodgett films. The films are modeled as ordered layers of molecules that can tilt from the vertical and have a higher polarizability and first hyperpolarizability in the head than in the tail. The local electric field varies little after the first layer and negligibly after the second, which simplifies the analysis. Tilted two-layer Y-type films can have quadratic susceptibility components as large as X- or Z-type ones. Overall the results provide a systematic account of the linear and nonlinear optical properties as a function of molecular and film structure that should assist interpretation of experimental results.

    Original languageEnglish
    Pages (from-to)6763-6773
    Number of pages11
    JournalJournal of Chemical Physics
    Volume112
    Issue number15
    DOIs
    Publication statusPublished - 15 Apr 2000

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