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Applied Optics

Applied Optics


  • Vol. 24, Iss. 8 — Apr. 15, 1985
  • pp: 1164–1170

Progress in the development of a durable silver-based high-reflectance coating for astronomical telescopes

Dar-Yuan Song, R. W. Sprague, H. Angus Macleod, and Michael R. Jacobson  »View Author Affiliations

Applied Optics, Vol. 24, Issue 8, pp. 1164-1170 (1985)

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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 in 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.

© 1985 Optical Society of America

Original Manuscript: December 10, 1984
Published: April 15, 1985

Dar-Yuan Song, R. W. Sprague, H. Angus Macleod, and Michael R. Jacobson, "Progress in the development of a durable silver-based high-reflectance coating for astronomical telescopes," Appl. Opt. 24, 1164-1170 (1985)

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