Development of multilayer thin film filters for the Full Sun Imager on Solar Orbiter

被引:0
|
作者
Auchere, Frederic [1 ]
Zhang, Xueyan [1 ]
Delmotte, Franck [2 ]
Meltchakov, Evgueni [2 ]
BenMoussa, Ali [3 ]
机构
[1] Univ Paris 11, Inst Astrophys Spatiale, CNRS, Batiment 121, F-91405 Orsay, France
[2] Univ Paris 11, CNRS, Inst Opt, Lab Charles Fabry, F-91127 Palaiseau, France
[3] Royal Observ Belgium, SIDC, B-1180 Brussels, Belgium
关键词
EUV optics; filters; thin films;
D O I
10.1117/12.893355
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Membranes a few hundred nanometers thick are used in EUV optics to make, for example, beams splitters or passband filters. Despite their necessity in numerous applications these components are, because of their thinness, extremely fragile and their implementation in space instruments is always difficult. The authors are developing thin film filters for the Full Sun Imager, one of the EUV telescopes on board the Solar Orbiter mission with objectives of high optical efficiency and mechanical strength. These filters are specifically designed to isolate one or the other of the two passbands (17.4 and 30.4 nm) reflected by the telescope's dual band mirror coating. In this paper we present the optical properties of the prototype components.
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页数:7
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