Broadband coated lens solutions for FIR-mm-wave instruments

Shitvov, Alexey, Savini, Giorgio, Hargreave, Peter C., Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Tucker, Carole E. ORCID: https://orcid.org/0000-0002-1851-3918, Sudiwala, Rashmi V. ORCID: https://orcid.org/0000-0003-3240-5304, Zhang, Jin, Gudmundson, Jon E., Winter, Berend, Pisano, Giampaolo ORCID: https://orcid.org/0000-0003-4302-5681 and van der Vorst, Maarten 2022. Broadband coated lens solutions for FIR-mm-wave instruments. Presented at: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy Xl, Montréal, Canada, 17-23 July 2022. Proceedings of Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI;. Proceedings of SPIE. , vol.12190 Society of Photo-optical Instrumentation Engineers, p. 19. 10.1117/12.2629968

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Abstract

This paper presents recent results of ongoing European Space Agency funded program of work aimed at developing large dielectric lenses suitable for future satellite missions, with a particular focus on requirements for CMB polarimetry. Two lens solutions are being investigated: (i) polymer lenses with broadband multi-layer antireflection coatings; (ii) silicon lenses with surface-structured anti-reflection coating represented by directly machined pyramidal features. For each solution, base materials with and without coatings have been optically characterized over a range of temperatures down to ~10 K. Full lens solutions are under manufacture and will be tested in a bespoke large cryo-optical facility....

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	Society of Photo-optical Instrumentation Engineers
ISBN:	9781510653610
ISSN:	0277-786X
Last Modified:	23 Feb 2023 11:36
URI:	https://orca.cardiff.ac.uk/id/eprint/156621

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