
Proceedings Paper
High reflectivity large scale telescope mirror coatings via long throw sputteringFormat | Member Price | Non-Member Price |
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Paper Abstract
Here we present reflectivity measurements of long throw sputtered aluminum coatings at normal and oblique incidence
angles on glass test chips. Experimental results indicate that water vapor partial pressure, not incident angle, is the dominant
factor for front surface reflectivity of sputtered aluminum. These results highlight the importance of water vapor pumping in
telescope mirror coating vacuum chambers and indicate that long-throw sputtering is an economical and reliable technique
for producing high uniformity, high reflectivity mirror coatings across large substrates.
Paper Details
Date Published: 18 July 2014
PDF: 6 pages
Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 91515J (18 July 2014); doi: 10.1117/12.2056909
Published in SPIE Proceedings Vol. 9151:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation
Ramón Navarro; Colin R. Cunningham; Allison A. Barto, Editor(s)
PDF: 6 pages
Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 91515J (18 July 2014); doi: 10.1117/12.2056909
Show Author Affiliations
A. J. Bourque, DynaVac (United States)
J. H. Gurian, DynaVac (United States)
Published in SPIE Proceedings Vol. 9151:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation
Ramón Navarro; Colin R. Cunningham; Allison A. Barto, Editor(s)
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