Non-periodic multilayer coatings for solar applications: advantages and future perspectives.

Corso, Alain Jody; Polito, Vanessa; Santi, Giovanni; Pelizzo, Maria Guglielmina; Zanna, G. Del

doi:10.1117/12.2595725

Cited by 1 publication

(1 citation statement)

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“…Narrowband MLs with high reflectance peaks are essential for precise observations with spectral selectivity, minimizing wavelength inter-mixing and reducing integration times. 4 On the other hand, efficient broad-band MLs are particularly sought-after for spectroscopic instruments 5,6 whereas dual-band coatings combined with adequate metallic filters are required for instruments able to perform imaging at two wavelength bands. 7 Additionally, there is a growing need for coatings capable of enduring harsh environments, including high thermal irradiation, protons, electrons, heavier ions, and gamma irradiation.…”

Section: Introductionmentioning

confidence: 99%

EUV and SXR multilayer coatings in solar physics: from the current aspects to the future perspectives

Corso,

Pelizzo,

Spiga

2023

Optics for EUV, X-Ray, and Gamma-Ray Astronomy XI

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Multilayer coatings (MLs) are widely employed for the development of EUV and SXR space-based instrumentation for solar plasma diagnostics since they are the only viable solution for the realization of high-efficiency normal incidence mirrors in this spectral range. Almost all the current missions adopt standard periodic MLs whose reflectance is usually characterized by a high but narrow spectral band. However, future challenges in solar plasma diagnostics require instrumentation with increasingly effective areas and capable of simultaneously observing multiple spectral lines. Fortunately, recent advancement in MLs technology has made the development of new solutions which improve the standard performance achieved so far. For Instance, the possibility to deposit non-periodic stacks with high repeatability and reliability enables the manufacturing of mirrors with either multi-band or broad-band high efficiency. In this work, a study of non-periodic multilayer coatings for the EUV/SXR range is presented, discussing some future perspectives for the next-generation missions.

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Section: Introductionmentioning

confidence: 99%