Aluminum mirror coatings for UVOIR telescope optics including the far UV

Kunjithapatham Balasubramanian, John Hennessy, Nasrat Raouf, Shouleh Nikzad, Michael Ayala, Stuart Shaklan, Paul Scowen, Javier Del Hoyo, Manuel Quijada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

27 Scopus citations

Abstract

NASA Cosmic Origins (COR) Program identified the development of high reflectivity mirror coatings for large astronomical telescopes particularly for the far ultra violet (FUV) part of the spectrum as a key technology requiring significant materials research and process development. In this paper we describe the challenges and accomplishments in producing stable high reflectance aluminum mirror coatings with conventional evaporation and advanced Atomic Layer Deposition (ALD) techniques. We present the current status of process development with reflectance of ∼ 55 to 80% in the FUV achieved with little or no degradation over a year.

Original languageEnglish (US)
Title of host publicationUV/Optical/IR Space Telescopes and Instruments
Subtitle of host publicationInnovative Technologies and Concepts VII
EditorsJames B. Breckinridge, Howard A. MacEwen, James B. Breckinridge, Howard A. MacEwen
PublisherSPIE
Volume9602
ISBN (Electronic)9781628417685, 9781628417685
DOIs
StatePublished - Jan 1 2015
EventUV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VII - San Diego, United States
Duration: Aug 9 2015Aug 10 2015

Other

OtherUV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VII
Country/TerritoryUnited States
CitySan Diego
Period8/9/158/10/15

Keywords

  • ALD
  • Aluminum mirror
  • Coating technology development
  • Far UV astrophysics
  • Large telescope optics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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