Optical characterisation of silver mirrors protected with transparent overcoats

A. Sytchkova; S. Schwinde; M. L. Protopapa; M. Palmisano; A. Piegari; M. Schürmann; N. Kaiser

doi:10.1117/12.2312077

5 June 2018 Optical characterisation of silver mirrors protected with transparent overcoats

A. Sytchkova, S. Schwinde, M. L. Protopapa, M. Palmisano, A. Piegari, M. Schürmann, N. Kaiser

Proceedings Volume 10691, Advances in Optical Thin Films VI; 106910N (2018) https://doi.org/10.1117/12.2312077
Event: SPIE Optical Systems Design, 2018, Frankfurt, Germany

Abstract

Time durability and environmental stability of silver-coated glass mirrors improve if silver layer is protected by a transparent thin film coating. The choice of the protecting layer material and of the methods for mirror manufacturing influences the mirror optical and mechanical properties. This work reports on a systematic study of silver mirrors overcoated by silicon oxide, nitride and oxy-nitrides. Variable angle spectroscopic ellipsometry was implemented to get an insight on metal-dielectric interface of the coatings. The results have been analyzed considering the coating deposition conditions and physical-chemical properties of the dielectric materials used as protective layers.

Citation Download Citation

A. Sytchkova, S. Schwinde, M. L. Protopapa, M. Palmisano, A. Piegari, M. Schürmann, and N. Kaiser "Optical characterisation of silver mirrors protected with transparent overcoats ", Proc. SPIE 10691, Advances in Optical Thin Films VI, 106910N (5 June 2018); https://doi.org/10.1117/12.2312077

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