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Anti-reflection coating of large-format lenses for sub-mm applications

Hargrave, Peter Charles and Savini, Giorgio 2010. Anti-reflection coating of large-format lenses for sub-mm applications. Presented at: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, San Diego, CA, 29 June 2010. Published in: Holland, Wayne S. and Zmuidzinas, Jonas eds. Proc. SPIE. SPIE, 77410S. 10.1117/12.856919

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We have recently developed a repeatable and reliable technique for anti-reflection coating large lenses, suitable for use at sub-mm wavelengths. Small lenses have been coated using this technique, and are currently flying on-board Herschel- SPIRE and Planck-HFI. We have recently coated much larger, highly-curved lenses (up to 380 mm diameter) for the EBEX and Polarbear cosmic microwave background (CMB) experiments. In this paper, we present details of the coating technique, experimental results of coated samples, and comparison of the results to theoretical predictions. We also present an indication of their technology readiness level (TRL) for future space applications such as B-Pol.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: SPIE
ISSN: 0277786X
Last Modified: 04 Jun 2017 04:10

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