Manipulating the quasi–normal modes of radially symmetric resonators
dc.contributor.author | Capers, JR | |
dc.contributor.author | Patient, DA | |
dc.contributor.author | Horsley, SAR | |
dc.date.accessioned | 2023-10-20T10:45:08Z | |
dc.date.issued | 2023-10-19 | |
dc.date.updated | 2023-10-20T10:05:00Z | |
dc.description.abstract | The frequency response of a resonator is governed by the locations of its quasi-normal modes in the complex frequency plane. The real part of the quasi–normal mode determines the resonance frequency and the imaginary part determines the width of the resonance. For applications such as energy harvesting and sensing, the ability to manipulate the frequency, linewidth and multipolar nature of resonances is key. Here, we derive two methods for simultaneously controlling the resonance frequency, linewidth and multipolar nature of the resonances of radially symmetric structures. Firstly, we formulate an eigenvalue problem for a global shift in the permittivity of the structure to place a resonance at a particular complex frequency. Next, we employ quasi-normal mode perturbation theory to design radially graded structures with resonances at desired frequencies. | en_GB |
dc.description.sponsorship | Royal Society | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.description.sponsorship | Defence Science and Technology Laboratory | en_GB |
dc.format.extent | 37142-37142 | |
dc.identifier.citation | Vol. 31, No. 22, pp. 37142-37153 | en_GB |
dc.identifier.doi | https://doi.org/10.1364/oe.503349 | |
dc.identifier.grantnumber | URF\R\211033 | en_GB |
dc.identifier.grantnumber | EP/L015331/1 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/134288 | |
dc.identifier | ORCID: 0000-0001-9161-2114 (Patient, Dean A) | |
dc.language.iso | en | en_GB |
dc.publisher | Optica | en_GB |
dc.rights | © 2023. Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. | en_GB |
dc.title | Manipulating the quasi–normal modes of radially symmetric resonators | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2023-10-20T10:45:08Z | |
dc.description | This is the final version. Available from Optica via the DOI in this record. | en_GB |
dc.description | Data availability. All data and code created during this research are openly available from the corresponding authors, upon reasonable request | en_GB |
dc.identifier.eissn | 1094-4087 | |
dc.identifier.journal | Optics Express | en_GB |
dc.relation.ispartof | Optics Express, 31(22) | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2023-10-08 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2023-10-19 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2023-10-20T10:41:38Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2023-10-20T10:45:16Z | |
refterms.panel | B | en_GB |
refterms.dateFirstOnline | 2023-10-19 |
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Further distribution of this work must maintain attribution to the author(s) and the published article’s title,
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