Savini, G;
Shitvov, A;
Hargrave, P;
Tucker, C;
Walker, I;
Ade, P;
Zhang, J;
... Charlton, J; + view all
(2021)
MetaTel: Ongoing work on a meta-material sub-THz telescope for Earth observing.
In:
UCMMT 2021 - UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies.
IEEE: Lancaster, UK.
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Abstract
We report on ongoing technology development activities in the build and testing of a refractive telescope composed of metamaterial Gradient Index (GrIn) lenses based on photolithographic meshes. This concept is tailored for Earth Observation, and more precisely limb-scanning in the sub- THz bands addressing emission lines between 50 and 190 GHz. A single GrIn lens design which includes in-built anti-reflection coating layers, allows us to produce sufficient refraction to allow an optical design of a set of compound lenses to create the first THz range telescope fully composed of metamaterials. First lens prototypes have been built and tested spectrally and spatially and compared to analytical models showing good agreement. Prediction of telescope performance is discussed as well as future developments.
| Type: | Proceedings paper |
|---|---|
| Title: | MetaTel: Ongoing work on a meta-material sub-THz telescope for Earth observing |
| Event: | 14th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT) |
| ISBN-13: | 9781665438537 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/UCMMT53364.2021.9569880 |
| Publisher version: | http://dx.doi.org/10.1109/UCMMT53364.2021.9569880 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Earth , Prototypes, Terahertz materials, Telescopes, Metamaterials, Reflection, Optical refraction |
| 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/10139866 |
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Loading...Loading...| 1. |  China | 8 |
| 2. |  United States | 6 |
| 3. |  United Kingdom | 1 |
| 4. |  South Africa | 1 |
| 5. |  Russian Federation | 1 |
| 6. |  France | 1 |
| 7. |  Singapore | 1 |
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