Low angular-dispersion microwave absorption of a dual-pitch nondiffracting metal bigrating

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Low angular-dispersion microwave absorption of a dual-pitch nondiffracting metal bigrating

Please use this identifier to cite or link to this item: http://hdl.handle.net/10036/23712

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Title: Low angular-dispersion microwave absorption of a dual-pitch nondiffracting metal bigrating
Author: Lockyear, Matthew J.
Hibbins, Alastair P.
Sambles, J. Roy
Lawrence, Christopher R.
Citation: 83 (4), pp. 806-808
Publisher: American Institute of Physics
Journal: Applied Physics Letters
Date Issued: 2003
URI: http://hdl.handle.net/10036/23712
DOI: 10.1063/1.1593229
Links: http://dx.doi.org/10.1063/1.1593229 http://link.aip.org/link/?APPLAB/83/806/1
Abstract: The surface plasmon modes supported by a nondiffracting 90° bigrating consisting of three grooves per repeat period with one slightly shallower than the other two are characterized by studying the reflectivity from the structure as a function of the angle of incidence and the incident wavelength (11.3<λ0<16.7 mm). This structure supports two remarkably angle-independent modes plus a further, lower-energy mode which is more dispersive. Experimental reflectivity is compared with that calculated using a finite element model. In addition, to understand the character of each of the modes, the spatial form of the electromagnetic fields at the resonant frequencies are explored.
Type: Article
Description: Copyright © 2003 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters 83 (2003) and may be found at http://link.aip.org/link/?APPLAB/83/806/1
Keywords: electromagnetic wave absorptionsurface plasmonsreflectivityfinite element analysispolaritons
ISSN: 0003-6951


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