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https://hdl.handle.net/2440/124511
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dc.contributor.author | Islam, M. | - |
dc.contributor.author | Sultana, J. | - |
dc.contributor.author | Biabanifard, M. | - |
dc.contributor.author | Vafapour, Z. | - |
dc.contributor.author | Nine, M.J. | - |
dc.contributor.author | Dinovitser, A. | - |
dc.contributor.author | Cordeiro, C.M.B. | - |
dc.contributor.author | Ng, B.W.-H. | - |
dc.contributor.author | Abbott, D. | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Carbon, 2020; 158:559-567 | - |
dc.identifier.issn | 0008-6223 | - |
dc.identifier.issn | 1873-3891 | - |
dc.identifier.uri | http://hdl.handle.net/2440/124511 | - |
dc.description.abstract | We propose a plasmon induced tunable metasurface for multiband superabsorption and terahertz sensing. It consists of a graphene sheet that facilitates perfect absorption where the graphene pattern at the top layer creates an enhanced evanescent wave that facilitates the metasurface to work as a sensor. The modelling and numerical analysis are carried out using Finite Element Method (FEM) based software, CST microwave studio where a genetic algorithm (GA) is used to optimize the geometric parameters, and metasurface tunability is achieved via an external gate voltage on the graphene. By exploiting graphene’s tunable properties we demonstrate a multiband superabsorption spectra having a maximum absorption of 99.7% in a frequency range of 0.1–2.0 THz that also maintain unique optical performance over a wide incidence angle. Further results show how the superabsorber can be used as a sensor, where the resonance frequency shifts with the refractive index of the surrounding environment. | - |
dc.description.statementofresponsibility | M.S. Islam, J. Sultana, M. Biabanifard, Z. Vafapour, M.J. Nine, A. Dinovitser, C.M.B. Cordeiro, B.W.-H. Ng, D. Abbott | - |
dc.language.iso | en | - |
dc.publisher | Elsevier | - |
dc.rights | © 2019 Elsevier Ltd. All rights reserved. | - |
dc.source.uri | http://dx.doi.org/10.1016/j.carbon.2019.11.026 | - |
dc.subject | Graphene; metasurface; absorber; terahertz sensor | - |
dc.title | Tunable localized surface plasmon graphene metasurface for multiband superabsorption and terahertz sensing | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.carbon.2019.11.026 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/DP170104984 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Islam, M. [0000-0003-0578-4732] | - |
dc.identifier.orcid | Nine, M.J. [0000-0002-5740-8627] | - |
dc.identifier.orcid | Ng, B.W.-H. [0000-0002-8316-4996] | - |
dc.identifier.orcid | Abbott, D. [0000-0002-0945-2674] | - |
Appears in Collections: | Aurora harvest 8 Electrical and Electronic Engineering publications |
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