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Theoretical study of the transmission properties of a metallic film with surface corrugations
KTH, Skolan för informations- och kommunikationsteknik (ICT), Mikroelektronik och tillämpad fysik, MAP.
2007 (engelsk)Inngår i: Journal of Optics. A, Pure and applied optics, ISSN 1464-4258, E-ISSN 1741-3567, Vol. 9, nr 4, s. 348-351Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Transmissions through a metallic film at near-infrared wavelengths with different surface corrugations on both sides are systemically studied. The calculations are performed by the three-dimensional finite-different time-domain method. Calculated results show that the transmissions are strongly dependent on the surface structures. Compared with other structures, the transmission for a film periodically drilled by cross air grooves are relatively larger. Transmission is enhanced more with symmetric conditions on both layers than the asymmetric case. The enhanced transmission can be explained by a competition between the absorption in the metal and enhanced transmission due to coupled surface plasmon resonance.

sted, utgiver, år, opplag, sider
2007. Vol. 9, nr 4, s. 348-351
Emneord [en]
diffraction scattering, surface plasmons, extraordinary optical-transmission, subwavelength hole arrays, enhanced transmission
Identifikatorer
URN: urn:nbn:se:kth:diva-16514DOI: 10.1088/1464-4258/9/4/007ISI: 000245434400008Scopus ID: 2-s2.0-34047192251OAI: oai:DiVA.org:kth-16514DiVA, id: diva2:334556
Merknad
QC 20100525Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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