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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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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: 06 Jun 2019 10:00

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