Comparative study of dielectric coating materials for micro-cavity applications

Najwa Sidqi; Caspar Clark; Gerald S. Buller; Gopala Krishna V. V. Thalluri; Jevgenij Mitrofanov; Yoann Noblet

doi:10.1364/OME.9.003452

Comparative study of dielectric coating materials for micro-cavity applications

Najwa Sidqi^*, Caspar Clark, Gerald S. Buller, Gopala Krishna V. V. Thalluri, Jevgenij Mitrofanov, Yoann Noblet

^*Corresponding author for this work

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Abstract

We study the potential of common dielectric coating materials used for the fabrication of high reflectance mirrors in micro-cavity devices used in the visible region. We examine materials grown using E-beam and thermal evaporation and magnetron sputtering. The refractive indices and the extinction coefficients of the coatings were calculated from transmission and reflectance spectrophotometric data. The surface roughness of single layer coatings was measured using atomic force microscopy and the scatter of the thin film coatings was approximated from roughness measurements.

Original language	English
Pages (from-to)	3452-3468
Number of pages	17
Journal	Optical Materials Express
Volume	9
Issue number	8
Early online date	24 Jul 2019
DOIs	https://doi.org/10.1364/OME.9.003452
Publication status	Published - 1 Aug 2019

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

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AU - Mitrofanov, Jevgenij

AU - Noblet, Yoann

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AB - We study the potential of common dielectric coating materials used for the fabrication of high reflectance mirrors in micro-cavity devices used in the visible region. We examine materials grown using E-beam and thermal evaporation and magnetron sputtering. The refractive indices and the extinction coefficients of the coatings were calculated from transmission and reflectance spectrophotometric data. The surface roughness of single layer coatings was measured using atomic force microscopy and the scatter of the thin film coatings was approximated from roughness measurements.

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Comparative study of dielectric coating materials for micro-cavity applications

Abstract

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