Paper
15 March 2019 Homogeneity of SiO2:TiO2 waveguide films fabricated via sol-gel method
Paweł Karasiński
Author Affiliations +
Proceedings Volume 11045, Optical Fibers and Their Applications 2018; 1104506 (2019) https://doi.org/10.1117/12.2522257
Event: 18th Conference on Optical Fibers and Their Applications, 2018, Naleczow, Poland
Abstract
Optical layers produced from liquid phase are susceptible to the occurrence of refractive index inhomogeneity. The presented work involves the determination of refractive index inhomogeneity in waveguide layers, using the envelope of the recorded reflectance spectrum. Appropriate formulas and the calculation procedure have been demonstrated. The determined refractive indices are used to calculate theoretical reflectance characteristics which are compared with the experimental characteristics. In this way, the determination correctness of refractive indices on layer boundaries is verified. The calculations of theoretical reflectance characteristics were carried out with the use of the transfer matrix 2×2 formalism. Excellent agreement of both characteristics has been obtained.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paweł Karasiński "Homogeneity of SiO2:TiO2 waveguide films fabricated via sol-gel method", Proc. SPIE 11045, Optical Fibers and Their Applications 2018, 1104506 (15 March 2019); https://doi.org/10.1117/12.2522257
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KEYWORDS
Refractive index

Waveguides

Reflectivity

Glasses

Sol-gels

Absorption

Integrated optics

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