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

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
157 Downloads (Pure)


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 languageEnglish
Pages (from-to)3452-3468
Number of pages17
JournalOptical Materials Express
Issue number8
Publication statusPublished - 24 Jul 2019


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