Improved mirror coatings for use in the Lyman Ultraviolet to enhance astronomical instrument capabilities

Manuel A. Quijada; Javier del Hoyo; David R. Boris; Scott G. Walton

doi:10.1117/12.2274790

5 September 2017 Improved mirror coatings for use in the Lyman Ultraviolet to enhance astronomical instrument capabilities

Manuel A. Quijada, Javier del Hoyo, David R. Boris, Scott G. Walton

Author Affiliations +

Proceedings Volume 10398, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VIII; 103980Z (2017) https://doi.org/10.1117/12.2274790
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

This paper will describe efforts at developing broadband mirror coatings with high performance that will extend from infrared wavelengths down to the Far-Ultraviolet (FUV) spectral region. These mirror coatings would be realized by passivating the surface of freshly made aluminum coatings with fluorine ions in order to form a thin AlF₃ overcoat that will protect the aluminum from oxidation and, hence, realize the high-reflectance of this material down to its intrinsic cut-off wavelength of 90 nm. Improved reflective coatings for optics, particularly in the FUV region (90-120 nm), could yield dramatically more sensitive instruments and permit more instrument design freedom.

Citation Download Citation

Manuel A. Quijada, Javier del Hoyo, David R. Boris, and Scott G. Walton "Improved mirror coatings for use in the Lyman Ultraviolet to enhance astronomical instrument capabilities", Proc. SPIE 10398, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VIII, 103980Z (5 September 2017); https://doi.org/10.1117/12.2274790

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