Pisano, G;
Shitvov, A;
Moseley, P;
Tucker, C;
Savini, G;
Ade, P;
(2018)
Development of large-diameter flat mesh-lenses for millimetre wave instrumentation.
In:
(Proceedings) SPIE Astronomical Telescopes + Instrumentation, 2018.
SPIE: Austin, Texas, USA.
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Abstract
We present novel optics solutions based on metal mesh flat lenses which can be used to mimic a refracting lens. This approach removes the bulk of the dielectric materials (polyethylene or silicon) required for fast optical refracting systems. Additional attractive property of these lenses is that they filter out unwanted higher frequency radiation, they are easy to anti-reflection coat and they are extremely light. Measurements from 300mm diameter prototypes of both a Fresnel-type graded-index lens and a phase-delay type mesh-lens are presented.
| Type: | Proceedings paper |
|---|---|
| Title: | Development of large-diameter flat mesh-lenses for millimetre wave instrumentation |
| Event: | SPIE Astronomical Telescopes + Instrumentation, 2018 |
| ISBN-13: | 9781510619692 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.2314063 |
| Publisher version: | https://doi.org/10.1117/12.2314063 |
| 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 |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10056664 |
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