The resonant electromagnetic fields of an array of metallic slits acting as Fabry-Perot cavities

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The resonant electromagnetic fields of an array of metallic slits acting as Fabry-Perot cavities

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dc.contributor.author Hibbins, Alastair P. en_GB
dc.contributor.author Lockyear, Matthew J. en_GB
dc.contributor.author Sambles, J. Roy en_GB
dc.contributor.department University of Exeter en_GB
dc.date.accessioned 2008-04-17T15:51:07Z en_GB
dc.date.accessioned 2011-01-25T11:54:08Z en_US
dc.date.accessioned 2013-03-20T13:12:01Z
dc.date.issued 2006 en_GB
dc.description.abstract Fabry-Perot cavities are perhaps the best known of the optical transmission resonators, with cavity field enhancement accomplished by two parallel and partially reflecting planes. Recently it has been shown that arrays of narrow slits cut into a metal substrate are similarly able to exhibit resonant transmission modes. An analysis of the field solutions and transmission properties of this resonant array is compared to the well-known etalon and dielectric slab geometries, revealing a most elegant illustration of the principles of Maxwell's electromagnetism. It is demonstrated that the matching of the propagating field to each slit-cavity mode is made possible through strong diffraction at each end. Furthermore, the interface between the slit cavities and semi-infinite space beyond acts as a high-impedance surface on resonance, reflecting the field with a positive reflection-amplitude coefficient. Metallic slit arrays have several advantages over conventional Fabry-Perot resonators with interesting application potential. en_GB
dc.identifier.citation 99 (12), article 124903 en_GB
dc.identifier.doi 10.1063/1.2204818 en_GB
dc.identifier.uri http://hdl.handle.net/10036/23693 en_GB
dc.language.iso en en_GB
dc.publisher American Institute of Physics en_GB
dc.relation.url http://dx.doi.org/10.1063/1.2204818 en_GB
dc.relation.url http://link.aip.org/link/?JAPIAU/99/124903/1 en_GB
dc.subject cavity resonators en_GB
dc.subject Fabry-Perot resonators en_GB
dc.subject metallic thin films en_GB
dc.subject light reflection en_GB
dc.subject Maxwell equations en_GB
dc.subject light propagation en_GB
dc.subject light diffraction en_GB
dc.subject optical arrays en_GB
dc.title The resonant electromagnetic fields of an array of metallic slits acting as Fabry-Perot cavities en_GB
dc.type Article en_GB
dc.date.available 2008-04-17T15:51:07Z en_GB
dc.date.available 2011-01-25T11:54:08Z en_US
dc.date.available 2013-03-20T13:12:01Z
dc.identifier.issn 0021-8979 en_GB
dc.description Copyright © 2006 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 Journal of Applied Physics 99 (2006) and may be found at http://link.aip.org/link/?JAPIAU/99/124903/1 en_GB
dc.identifier.journal Journal of Applied Physics en_GB


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