Multilayer Coatings For Astronomical Telescope Mirrors

D. Y. Song; H. A. Macleod

doi:10.1117/12.976107

20 November 1985 Multilayer Coatings For Astronomical Telescope Mirrors

D. Y. Song, H. A. Macleod

Proceedings Volume 0540, Southwest Conf on Optics '85; (1985) https://doi.org/10.1117/12.976107
Event: 1985 Albuquerque Conferences on Optics, 1985, Albuquerque, United States

Abstract

Silver-based high-reflectance coatings that can withstand the humid and polluted conditions common in the open air have been developed for astronomical telescope optics. The successful designs incorporate a silver reflective layer with a copper underlayer and a stack of dielectric overlayers. Prototypes have been deposited and tested in a controlled environmental chamber and under true operating conditions on Kitt Peak in Arizona. The improved durability, which is due to the copper underlayer, has been investigated with analytical techniques, including Rutherford backscattering.

Citation Download Citation

D. Y. Song and H. A. Macleod "Multilayer Coatings For Astronomical Telescope Mirrors", Proc. SPIE 0540, Southwest Conf on Optics '85, (20 November 1985); https://doi.org/10.1117/12.976107

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