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7 April 2015 Study of optical materials to be used on Multi Element Telescope for Imaging and Spectroscopy instrument
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Abstract
The European Space Agency mission Solar Orbiter (SOLO) is dedicated to the study of the solar atmosphere and heliosphere. As a part of the payload, the instrument METIS (Multi Element Telescope for Imaging and Spectroscopy) will provide images of the corona, both in the visible range and at the hydrogen Lyman-α emission line (121.6 nm). The realization of optical coatings, based on Al and MgF2, able to reflect/transmit such spectral components is, therefore, necessary. Since optical characteristics of materials in the vacuum ultraviolet range are not well studied and vary greatly with the realization process, we implemented a study of their properties in different deposition conditions. This is aimed to the realization of a custom designed filter able to transmit the 121.6 nm wavelength while reflecting visible light, and thus separating visible from ultraviolet light paths in the METIS instrument.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE) 2329-4124/2015/$25.00 © 2015 SPIE
Marco Nardello, Sara Zuccon, Alain Jodi Corso, Paola Zuppella, Francesca Gerlin, Enrico Tessarolo, and Maria Guglielmina Pelizzo "Study of optical materials to be used on Multi Element Telescope for Imaging and Spectroscopy instrument," Journal of Astronomical Telescopes, Instruments, and Systems 1(2), 024003 (7 April 2015). https://doi.org/10.1117/1.JATIS.1.2.024003
Published: 7 April 2015
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