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Proceedings Paper

Cryogenic Testing Of Reflective Optical Components And Telescope Systems
Author(s): Andrew A. Mastandrea; Robert T. Benoit; Richard R. Glasheen
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Paper Abstract

This paper documents and investigates the optical performance of metal mirrors at cryogenic temperatures. It also reviews the telescope system level optical performance for several telescope systems designed and fabricated at SSG. These include data on the LAIRTS Telescope (Large Aperture Infrared Telescope Sensor), the CLAES Telescope (Cryogenic Limb Array Etalon Spectrometer), and the SPIRIT II Telescope (Spatial Infrared Rocketborne Interferometer Telescope). A brief discussion of the design and fabrication of these mirrors is included along with a summary of the driving design performance constraints on cryogenic infrared optics. A review of the test techniques and cryogenic test facilities is given. Interferometric testing is the primary tool used to test these mirrors and systems. This section of the paper also discusses the data analysis methods utilized to determine the cryogenic optical performance of these mirrors.

Paper Details

Date Published: 11 October 1989
PDF: 8 pages
Proc. SPIE 1113, Reflective Optics II, (11 October 1989); doi: 10.1117/12.955593
Show Author Affiliations
Andrew A. Mastandrea, Sensor Systems Group, Inc. (United States)
Robert T. Benoit, Sensor Systems Group, Inc. (United States)
Richard R. Glasheen, Sensor Systems Group, Inc. (United States)

Published in SPIE Proceedings Vol. 1113:
Reflective Optics II
Dietrich G. Korsch, Editor(s)

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