CILAS’ recent achievements in astronomy and space

Hélène T. Krol; Xavier Buet; Colin Bondet de la Bernardie; Didier Torricini; Grégory Chauveau

doi:10.1117/12.3025127

18 June 2024 CILAS’ recent achievements in astronomy and space

Hélène T. Krol, Xavier Buet, Colin Bondet de la Bernardie, Didier Torricini, Grégory Chauveau

Proceedings Volume PC13020, Advances in Optical Thin Films VIII; PC1302002 (2024) https://doi.org/10.1117/12.3025127
Event: SPIE Optical Systems Design, 2024, Strasbourg, France

Abstract

For several years, CILAS has developed an expertise in the field of optical thin films deposition and in-situ optical monitoring techniques that enables today to successfully answer growing requests of optical coatings for astronomy and space applications, with large dimensions. In particular DIBS, PIAD and Magnetron sputtering techniques allow us to guarantee the production of dense coatings well adapted to severe environments. In this paper, we will first focus on recent projects realized for astronomy: antireflection coating on large diameter and high curvature CaF2 lenses, enhanced aluminum coating on 1.8m diameter secondary mirrors. Then we will present space-qualified enhanced silver and unprotected gold coatings dedicated to reflective surfaces (telescope mirrors, gratings) of instruments for Earth observation and black absorber coatings for parasitic light reduction. Finally, some complex optical functions developed and qualified for various space applications will be presented: mapping sources and sinks of carbon dioxide (MicroCarb) ; determining the composition of the Venus surface (Envision and Veritas) ; communicating in free-space (TELEO).

Conference Presentation

Citation Download Citation

Hélène T. Krol, Xavier Buet, Colin Bondet de la Bernardie, Didier Torricini, and Grégory Chauveau "CILAS’ recent achievements in astronomy and space", Proc. SPIE PC13020, Advances in Optical Thin Films VIII, PC1302002 (18 June 2024); https://doi.org/10.1117/12.3025127

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