Second-harmonic scanning optical microscopy of poled silica waveguides

Kjeld Pedersen, Sergey I. Bozhevolnyi, Jesper Arentoft, Martin Kristensen, Christian Laurent-Lund

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    Abstract

    Second-harmonic scanning optical microscopy (SHSOM) is performed on electric-field poled silica-based waveguides. Two operation modes of SHSOM are considered. Oblique transmission reflection and normal reflection modes are used to image the spatial distribution of nonlinear susceptibilities in the sample surface plane and in depth. It is shown that the spatial resolution in normal reflection mode can be better than 1 µm for second-harmonic images. A simple qualitative description of this operation mode is suggested and found to be in good agreement with the results obtained. Advantages and limitations of the two operation modes when used for SHSOM studies of poled silica-based waveguides are discussed. The influence of surface defects on the resulting second-harmonic images is also considered. ©2000 American Institute of Physics.
    Original languageEnglish
    JournalJournal of Applied Physics
    Volume88
    Issue number7
    Pages (from-to)3872
    ISSN0021-8979
    DOIs
    Publication statusPublished - 2000

    Bibliographical note

    Copyright (2000) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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