Shitvov, A;
Savini, G;
Hargrave, PC;
Ade, PAR;
Tucker, CE;
Sudiwala, RV;
Zhang, J;
... Van Der Vorst, M; + view all
(2022)
Broadband coated lens solutions for FIR-mm-wave instruments.
In:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI.
SPIE - The International Society for Optical Engineering: Montreal, QC, Canada.
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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.
| Type: | Proceedings paper |
|---|---|
| Title: | Broadband coated lens solutions for FIR-mm-wave instruments |
| Event: | SPIE Astronomical Telescopes and Instrumentation 2022 |
| Dates: | 17 Jul 2022 - 23 Jul 2022 |
| ISBN-13: | 9781510653610 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.2629968 |
| Publisher version: | https://doi.org/10.1117/12.2629968 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10158958 |
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