Share Email Print
cover

Proceedings Paper

Progress toward high-performance astronomical coatings
Author(s): Andrew C. Phillips; William E. Brown; Brian Dupraw; David F. Hilyard; David J. Cowley
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We present an update on efforts at University of California Observatories to develop improved optical coatings for astronomical telescopes and instruments. The main thrust has been in the areas of protected silver mirror coatings and sol-gel based anti-reflection coatings. We report on the performance of silver coatings used for several years in Keck and Lick instruments, as well as that on the Lick 1-m telescope. We discuss process improvements, including use of reactive ion-assisted deposition of oxides. Sol-gel based AR coatings have been exposed to cryogenic environments to test their suitability for IR instruments, with encouraging results. Finally, we describe our plans for future work.­

Paper Details

Date Published: 20 July 2010
PDF: 7 pages
Proc. SPIE 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation, 77393Y (20 July 2010); doi: 10.1117/12.856499
Show Author Affiliations
Andrew C. Phillips, Univ. of California Observatories (United States)
William E. Brown, Univ. of California Observatories (United States)
Brian Dupraw, Univ. of California Observatories (United States)
David F. Hilyard, Univ. of California Observatories (United States)
David J. Cowley, Univ. of California Observatories (United States)


Published in SPIE Proceedings Vol. 7739:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

© SPIE. Terms of Use
Back to Top