Ioannidis, Thanos, Gric, Tatjana and Rafailov, Edik (2022). Tunable polaritons of spiral nanowire metamaterials. Waves in Random and Complex Media, 32 (1), pp. 381-389.
Abstract
The tunable spiral nanowire metamaterial design at optical frequency is presented, and the surface polaritons are theoretically studied. It was found that the dispersions of the polaritons could be tuned by varying physical dimensions of the spiral nanowire metamaterial. This geometry is unique. Doing so, one may dynamically control the properties of surface polaritons. In addition, the Ferrell–Berreman modes can be excited that is impossible with the regular nanowire metamaterials having the circular cross-section of the nanowires. Herein, the presence of Ferrell–Berreman branches is confirmed by the performed analysis of the metamaterial band structure. It is worthwhile noting, that existence of Ferrell–Berreman modes is possible without epsilon-near-zero (ENZ) regime. The design of devices where Ferrell–Berreman modes can be exploited for practical applications ranging from plasmonic sensing to imaging and absorption enhancement is possible because of the propagation constant revealing subtle microscopic resonances.
Publication DOI: | https://doi.org/10.1080/17455030.2020.1774095 |
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Divisions: | College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT) |
Additional Information: | This is an Accepted Manuscript of an article published by Taylor & Francis Group in Waves in Random and Complex Media on 3 June 2020, available online at: http://www.tandfonline.com/10.1080/17455030.2020.1774095 |
Uncontrolled Keywords: | Metamaterials,General Engineering,General Physics and Astronomy |
Publication ISSN: | 1745-5049 |
Last Modified: | 30 Sep 2024 12:27 |
Date Deposited: | 18 Aug 2020 09:51 |
Full Text Link: | |
Related URLs: |
https://www.tan ... 30.2020.1774095
(Publisher URL) http://www.scop ... tnerID=8YFLogxK (Scopus URL) |
PURE Output Type: | Article |
Published Date: | 2022-01 |
Published Online Date: | 2020-06-03 |
Accepted Date: | 2020-05-20 |
Authors: |
Ioannidis, Thanos
Gric, Tatjana Rafailov, Edik ( 0000-0002-4152-0120) |