Determination Of Volume And Surface Contributions To The Total Attenuation In Zns Wave-Guides

    Authors

    M. D. Himel;T. C. Kimble

    Comments

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    Abbreviated Journal Title

    Appl. Optics

    Keywords

    Optical-Waveguides; Substrate-Temperature; Thin-Films; Scattering; Losses; Optics

    Abstract

    We relate the modal waveguide attenuation of polycrystalline ZnS films to their mode field properties, namely the field amplitudes at the interfaces and the power confinement factor, to show that the total waveguide attenuation is caused by a combination of volume and surface effects. Our results show that the surface losses for the TE0 mode, which are approximately 1.5 dB/cm, are independent of the total attenuation, which varies from 6 to 40 dB/cm. This suggests that the losses of the lower-order modes are dominated by volume effects such as scattering from crystallite boundaries and absorption.

    Journal Title

    Applied Optics

    Volume

    32

    Issue/Number

    18

    Publication Date

    1-1-1993

    Document Type

    Article

    Language

    English

    First Page

    3306

    Last Page

    3311

    WOS Identifier

    WOS:A1993LG68600019

    ISSN

    0003-6935

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