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Proceedings Paper • Open Access

Absorbing coating in magnetron sputtering for parasitic light reduction
Author(s): C. Grèzes-Besset; H. Krol; G. Chauveau; D. Stojcevski; C. Bondet de la Bernardie; M. Zerrad; S. Liukaityte; M. Lequime; C. Amra; P. Etcheto; I. Savin De Larclause; M. Tatat

Paper Abstract

Stray light is an important issue in optical systems and may be responsible for huge limitation of final performances. Use of black coated surfaces is known to be an efficient means to reduce such parasitic light sources and various solutions exist that can be applied to mechanical surfaces such as black paints or black anodization; these coatings are relatively thick and to produce thin, black baffle edges, a thin layer technology is thus needed. In this paper, we show how thin film multilayer coatings can be a solution to answer this problematic as it is possible to design accurate spectral response that present a very low level of reflectance with a zero value of transmittance.

Paper Details

Date Published: 17 November 2017
PDF: 8 pages
Proc. SPIE 10563, International Conference on Space Optics — ICSO 2014, 1056307 (17 November 2017); doi: 10.1117/12.2304201
Show Author Affiliations
C. Grèzes-Besset, CILAS (France)
H. Krol, CILAS (France)
G. Chauveau, CILAS (France)
D. Stojcevski, CILAS (France)
C. Bondet de la Bernardie, CILAS (France)
M. Zerrad, Institut Fresnel (France)
S. Liukaityte, Institut Fresnel (France)
M. Lequime, Institut Fresnel (France)
C. Amra, Institut Fresnel (France)
P. Etcheto, Ctr. National d'Études Spatiales (France)
I. Savin De Larclause, Ctr. National d'Études Spatiales (France)
M. Tatat, Ctr. National d'Études Spatiales (France)


Published in SPIE Proceedings Vol. 10563:
International Conference on Space Optics — ICSO 2014
Zoran Sodnik; Bruno Cugny; Nikos Karafolas, Editor(s)

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