Abstract
Because sol-gel is a convenient technique for the fabrication of oxide coatings, many researchers have investigated its application in the fabrication of optical waveguides. Optical fibers can also be manufactured using sol-gel preforms [1, 2], but we will concern ourselves here with planar geometries. Light will be guided in any transparent dielectric material surrounded by a dielectric of lower refractive index. Thus the simplest thin film waveguide geometry, and hence the most studied, is obtained by depositing a coating on a transparent substrate of lower index than the coating.
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Yeatman, E.M. (2004). Thin-Film Optical Waveguides. In: Aegerter, M.A., Mennig, M. (eds) Sol-Gel Technologies for Glass Producers and Users. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-88953-5_42
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DOI: https://doi.org/10.1007/978-0-387-88953-5_42
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4419-5455-8
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