Normal Incidence Multilayer Mirrors For Extreme Ultraviolet Astronomy

Robert A Stern; Bernhard M Haisch; George Joki; Richard C Catura

doi:10.1117/12.966166

9 January 1984 Normal Incidence Multilayer Mirrors For Extreme Ultraviolet Astronomy

Robert A Stern, Bernhard M Haisch, George Joki, Richard C Catura

Proceedings Volume 0445, Instrumentation in Astronomy V; (1984) https://doi.org/10.1117/12.966166
Event: 1983 Astronomy Conferences, 1983, London, United Kingdom

Abstract

Sputtered multilayer coatings allow the use of normal incidence optics in the extreme ultraviolet (EUV) region below 500 R. Multilayer mirrors can be tailored to provide images at strong EUV lines in the sun and stars, in many cases making more efficient use of the telescope aperture than grazing incidence optics. Alternatively, the bandpass can be broadened at the expense of peak effective area, by varying the multilayer structure over the mirror surface. Such mirrors can also serve as optical elements in spectrographs for investigation of specific emission and absorption line complexes, and are self-filtering in that they reject nearby geocoronal and cosmic resonance line backgrounds. Current efforts at the Lockheed Palo Alto Research Laboratory in the design, fabrication, and testing of EUV multilayer mirrrors are discussed. This program includes the design and fabrication of normal incidence EUV multilayer mirrors, and the deposition of multilayers on lacquer-coated substrates.

Citation Download Citation

Robert A Stern, Bernhard M Haisch, George Joki, and Richard C Catura "Normal Incidence Multilayer Mirrors For Extreme Ultraviolet Astronomy", Proc. SPIE 0445, Instrumentation in Astronomy V, (9 January 1984); https://doi.org/10.1117/12.966166

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