Gratingless enhanced microwave transmission through a subwavelength aperture in a thick metal plate

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Gratingless enhanced microwave transmission through a subwavelength aperture in a thick metal plate

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dc.contributor.author Hibbins, Alastair P. en_GB
dc.contributor.author Sambles, J. Roy en_GB
dc.contributor.author Lawrence, Christopher R. en_GB
dc.contributor.department University of Exeter; QinetiQ Ltd., Farnborough en_GB
dc.date.accessioned 2008-04-18T15:11:35Z en_GB
dc.date.accessioned 2011-01-25T11:54:52Z en_US
dc.date.accessioned 2013-03-20T13:18:51Z
dc.date.issued 2002 en_GB
dc.description.abstract Remarkably enhanced transmission of microwave radiation through a single subwavelength slit in a thick metallic substrate surrounded by just a pair of parallel deep and narrow grooves is recorded. By also patterning the output face of the metal slab with two grooves there is strong exit beam confinement. There are no gratings in this structure and, hence, the transmission mechanism is not related to the conventional grating coupling of surface plasmons on the upper and lower surfaces of the substrate. Instead, the slit and the four grooves are all resonant, which is the essence of the functioning of the arrangement. The enhancement is due to the collective excitation of the Fabry–Pérot mode in the slit and the cavity modes in the grooves. A finite-element modeling code is used to optimize the response of the structure, and to investigate the electromagnetic fields in the vicinity of the substrate. en_GB
dc.identifier.citation 81 (24), pp. 4661-4663 en_GB
dc.identifier.doi 10.1063/1.1527704 en_GB
dc.identifier.uri http://hdl.handle.net/10036/23812 en_GB
dc.language.iso en en_GB
dc.publisher American Institute of Physics en_GB
dc.relation.url http://dx.doi.org/10.1063/1.1527704 en_GB
dc.relation.url http://link.aip.org/link/?APPLAB/81/4661/1 en_GB
dc.subject electromagnetic wave transmission en_GB
dc.subject finite element analysis en_GB
dc.subject Fabry-Perot resonators en_GB
dc.subject cavity resonators en_GB
dc.subject microwave propagation en_GB
dc.title Gratingless enhanced microwave transmission through a subwavelength aperture in a thick metal plate en_GB
dc.type Article en_GB
dc.date.available 2008-04-18T15:11:35Z en_GB
dc.date.available 2011-01-25T11:54:52Z en_US
dc.date.available 2013-03-20T13:18:51Z
dc.identifier.issn 0003-6951 en_GB
dc.description Copyright © 2002 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 81 (2002) and may be found at http://link.aip.org/link/?APPLAB/81/4661/1 en_GB
dc.identifier.journal Applied Physics Letters en_GB


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