On the optimal plasmonic resonances in gold nanospheres embedded in dispersive media

Nordebo, Sven, Ivanenko, Yevhen and Bayford, Richard ORCID: https://orcid.org/0000-0001-8863-6385 (2019) On the optimal plasmonic resonances in gold nanospheres embedded in dispersive media. 2019 URSI International Symposium on Electromagnetic Theory (EMTS). In: URSI EM Theory Symposium, EMTS 2019, 27-31 May 2019, San Diego, CA, USA. e-ISBN 9781946815064, pbk-ISBN 9781538655931. [Conference or Workshop Item] (doi:10.23919/ursi-emts.2019.8931489)

Abstract

New fundamental upper bounds have recently been given regarding the optimal plasmonic multipole resonances of a rotationally invariant sphere embedded in a lossy surrounding medium. The new theory is based on a generalized optical theorem for the absorption of a sphere in a lossy medium and employs straightforward analysis to explicitly maximize a concave function. The new bounds are briefly summarized in this paper and then employed in a study concerning the effectiveness of using gold nanospheres as absorbers of the sizes typically used in biomedical applications and plasmonic photothermal therapy.

Item Type: Conference or Workshop Item (Paper)
Research Areas: A. > School of Science and Technology > Natural Sciences
Item ID: 32951
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Depositing User: Jisc Publications Router
Date Deposited: 14 Apr 2021 10:55
Last Modified: 16 Apr 2021 16:03
URI: https://eprints.mdx.ac.uk/id/eprint/32951

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