All optical nanostructed sensor based on metal-dielectric-metal plasmonic waveguide

Gong, Yongkang, Copner, N. J., Davies, Antony, Li, Kang and Huang, Jungang 2012. All optical nanostructed sensor based on metal-dielectric-metal plasmonic waveguide. Presented at: 2012 Symposium on Photonics and Optoelectronics, Shanghai, China, 21-23 May 2012. 2012 Symposium on Photonics and Optoelectronics. IEEE, 10.1109/SOPO.2012.6270564

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Abstract

Based on a two-dimensional plasmonic metal-dielectric-metal waveguide with a thin metallic layer and dual nanocavites inserted in the core, a novel nanostructured absorber is presented. A transfer matrix model for the proposed structure is established, and the optical spectra are investigated. Design results show that a narrow reflection spectrum occurs at position of the near-unity absorption, and is significantly influenced by the environment. It is able to generate a sensitivity as high as 1000 nm/RIU, which be used as an excellent sensing platform for chemical and biochemically relevant molecules.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Physics and Astronomy
Publisher:	IEEE
ISBN:	978-1-4577-0909-8
Last Modified:	05 Aug 2022 01:46
URI:	https://orca.cardiff.ac.uk/id/eprint/119605

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