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Refractive telescope systems for future cosmic microwave background polarimetry experiments

Hargrave, Peter, Savini, Giorgio, Gradziel, Marcin, Trappe, Neil, Tynan, Niall, Candotti, Massimo, Challinor, Anthony, Sørenson, Stig, Ade, Peter, Sudiwala, Rashmikant V. and van der Vorst, Maarten 2014. Refractive telescope systems for future cosmic microwave background polarimetry experiments. Presented at: Astronomical Telescopes and Instrumentation 2014, Published in: Holland, Wayne S. and Zmuidzinas, Jonas eds. Proceedings SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII. Society of Photo-optical Instrumentation Engineers, p. 915314. 10.1117/12.2054634

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Abstract

This paper presents the key findings of an ESA-funded programme of work to investigate refractive systems and their application to precision polarimetry experiments. We briefly summarize the derivation of requirements on the optical system for CMB polarimetry, and the design of a refractive telescope system which meets these stringent requirements. An extensive programme of experimental work was undertaken in order to better understand the optical, thermal and mechanical characteristics of the lens material, and of lenses made from this material. A repeatable and controllable antireflection coating procedure was developed and validated, and used to coat lenses used in this study. Optical measurements before and after coating have been used to validate a new module for an industry-standard antenna modelling software package. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: Society of Photo-optical Instrumentation Engineers
ISSN: 0277-786X
Last Modified: 04 Jun 2017 08:30
URI: http://orca.cf.ac.uk/id/eprint/79492

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