Some considerations on the transmissivity of thin metal films

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Some considerations on the transmissivity of thin metal films

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dc.contributor.author Hooper, Ian R. en_GB
dc.contributor.author Sambles, J. Roy en_GB
dc.contributor.department University of Exeter en_GB
dc.date.accessioned 2009-01-27T17:00:38Z en_GB
dc.date.accessioned 2011-01-25T11:54:41Z en_US
dc.date.accessioned 2013-03-20T13:21:50Z
dc.date.issued 2008 en_GB
dc.description.abstract As interest in plasmonics grows the optical properties of thin metal films becomes increasingly significant. Here we explore the transmissivity of thin metal films at normal incidence, from the ultraviolet to microwaves, and show how, contrary to simplistic treatments, the microwave transmissivity may be much less than the optical transmissivity for films which are well below the skin depth in thickness. This arises because the film is acting as a zero order Fabry-Perot with very high reflectivity at each interface. The skin depth then becomes irrelevant for thin metal films at microwave frequencies. We also note in passing that the expected exponential dependence on thickness at higher thicknesses has an asymptotic limit at zero thickness which may be as high as four times the input intensity. en_GB
dc.identifier.citation 16 (22), pp. 17258-17268 en_GB
dc.identifier.doi 10.1364/OE.16.017258 en_GB
dc.identifier.uri http://hdl.handle.net/10036/48093 en_GB
dc.language.iso en en_GB
dc.publisher Optical Society of America en_GB
dc.relation.url http://dx.doi.org/10.1364/OE.16.017258 en_GB
dc.relation.url http://www.opticsinfobase.org/abstract.cfm?URI=oe-16-22-17258 en_GB
dc.title Some considerations on the transmissivity of thin metal films en_GB
dc.type Article en_GB
dc.date.available 2009-01-27T17:00:38Z en_GB
dc.date.available 2011-01-25T11:54:41Z en_US
dc.date.available 2013-03-20T13:21:50Z
dc.identifier.issn 1094-4087 en_GB
dc.description Copyright © 2008 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-22-17258 . Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. en_GB
dc.identifier.journal Optics Express en_GB


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