Low cost and long-focal-depth metallic axicon for terahertz frequencies based on parallel-plate-waveguides

Abstract In this work we demonstrate a triangular surface lens (axicon) operating at frequencies between 350 and 450 GHz using parallel-plate-waveguide technology. The proposed axicon offers longer focal depth characteristics compared to conventional plastic lenses, surpassing common TPX lenses by o...

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Autores principales:	A. I. Hernandez-Serrano, Emma Pickwell-MacPherson
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6df41e9a85e042808118c9a324478459
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spelling	oai:doaj.org-article:6df41e9a85e042808118c9a3244784592021-12-02T10:44:21ZLow cost and long-focal-depth metallic axicon for terahertz frequencies based on parallel-plate-waveguides10.1038/s41598-021-82503-x2045-2322https://doaj.org/article/6df41e9a85e042808118c9a3244784592021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82503-xhttps://doaj.org/toc/2045-2322Abstract In this work we demonstrate a triangular surface lens (axicon) operating at frequencies between 350 and 450 GHz using parallel-plate-waveguide technology. The proposed axicon offers longer focal depth characteristics compared to conventional plastic lenses, surpassing common TPX lenses by one order of magnitude. Additionally, due to the triangular surface of the axicon, this device is able to focus THz radiation onto smaller areas than TPX lenses, enhancing the resolution characteristics of THz imaging systems. The frequency range of operation of the proposed axicon can be easily tuned by changing the space between plates, making this approach a very attractive candidate for low-cost, robust and easy to assemble solutions for the next generation of active THz devices.A. I. Hernandez-SerranoEmma Pickwell-MacPhersonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q A. I. Hernandez-Serrano Emma Pickwell-MacPherson Low cost and long-focal-depth metallic axicon for terahertz frequencies based on parallel-plate-waveguides
description	Abstract In this work we demonstrate a triangular surface lens (axicon) operating at frequencies between 350 and 450 GHz using parallel-plate-waveguide technology. The proposed axicon offers longer focal depth characteristics compared to conventional plastic lenses, surpassing common TPX lenses by one order of magnitude. Additionally, due to the triangular surface of the axicon, this device is able to focus THz radiation onto smaller areas than TPX lenses, enhancing the resolution characteristics of THz imaging systems. The frequency range of operation of the proposed axicon can be easily tuned by changing the space between plates, making this approach a very attractive candidate for low-cost, robust and easy to assemble solutions for the next generation of active THz devices.
format	article
author	A. I. Hernandez-Serrano Emma Pickwell-MacPherson
author_facet	A. I. Hernandez-Serrano Emma Pickwell-MacPherson
author_sort	A. I. Hernandez-Serrano
title	Low cost and long-focal-depth metallic axicon for terahertz frequencies based on parallel-plate-waveguides
title_short	Low cost and long-focal-depth metallic axicon for terahertz frequencies based on parallel-plate-waveguides
title_full	Low cost and long-focal-depth metallic axicon for terahertz frequencies based on parallel-plate-waveguides
title_fullStr	Low cost and long-focal-depth metallic axicon for terahertz frequencies based on parallel-plate-waveguides
title_full_unstemmed	Low cost and long-focal-depth metallic axicon for terahertz frequencies based on parallel-plate-waveguides
title_sort	low cost and long-focal-depth metallic axicon for terahertz frequencies based on parallel-plate-waveguides
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6df41e9a85e042808118c9a324478459
work_keys_str_mv	AT aihernandezserrano lowcostandlongfocaldepthmetallicaxiconforterahertzfrequenciesbasedonparallelplatewaveguides AT emmapickwellmacpherson lowcostandlongfocaldepthmetallicaxiconforterahertzfrequenciesbasedonparallelplatewaveguides
_version_	1718396766689165312

Low cost and long-focal-depth metallic axicon for terahertz frequencies based on parallel-plate-waveguides

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