Low angular-dispersion microwave absorption of a metal dual-period nondiffracting hexagonal grating

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Low angular-dispersion microwave absorption of a metal dual-period nondiffracting hexagonal grating

Please use this identifier to cite or link to this item: http://hdl.handle.net/10036/23501

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Title: Low angular-dispersion microwave absorption of a metal dual-period nondiffracting hexagonal grating
Author: Lockyear, Matthew J.
Hibbins, Alastair P.
Sambles, J. Roy
Lawrence, Christopher R.
Citation: 86 (18), article 184103
Publisher: American Institute of Physics
Journal: Applied Physics Letters
Date Issued: 2005
URI: http://hdl.handle.net/10036/23501
DOI: 10.1063/1.1921345
Links: http://dx.doi.org/10.1063/1.1921345 http://link.aip.org/link/?APPLAB/86/184103/1
Abstract: The microwave (11.3<λ0<16.7 mm) reflectivity response of a nondiffracting dual-period hexagonal grating is explored. In three directions at 60° to each other, the aluminum grating has a repeat period of 7.2 mm in which are three equally spaced grooves, one being slightly shallower than the other two. This dual-period (λg and λg/3) structure exhibits strong microwave absorption at several different frequencies. In addition, some of the absorptions are almost completely independent of the angle of incidence and polarization of the microwave radiation.
Type: Article
Description: Copyright © 2005 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 86 (2005) and may be found at http://link.aip.org/link/?APPLAB/86/184103/1
Keywords: diffraction gratingsreflectivitymicrowave spectraaluminium
ISSN: 0003-69510003-6951


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