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Surface plasmon resonance in nanostructured metal films under the Kretschmann configuration

dc.contributor.author Leong, HS
dc.contributor.author Guo, J
dc.contributor.author Lindquist, RG
dc.contributor.author Liu, QH
dc.date.accessioned 2011-04-15T16:46:40Z
dc.date.issued 2009-12-01
dc.identifier.issn 0021-8979
dc.identifier.uri http://hdl.handle.net/10161/3321
dc.description.abstract We systematically investigated the surface plasmon resonance in one-dimensional (1D) subwavelength nanostructured metal films under the Kretschmann configuration. We calculated the reflectance, transmittance, and absorption for varying the dielectric fill factor, the period of the 1D nanostructure, and the metal film thickness. We have found that the small dielectric slits in the metal films reduce the surface plasmon resonance angle and move it toward the critical angle for total internal reflection. The reduction in surface plasmon resonance angle in nanostructured metal films is due to the increased intrinsic free electron oscillation frequency in metal nanostructures. Also we have found that the increasing the spatial frequency of the 1D nanograting reduces the surface plasmon resonance angle, which indicates that less momentum is needed to match the momentum of the surface plasmon-polariton. The variation in the nanostructured metal film thickness changes the resonance angle slightly, but mainly remains as a mean to adjust the coupling between the incident optical wave and the surface plasmon-polariton wave. © 2009 American Institute of Physics.
dc.language.iso en_US
dc.relation.ispartof Journal of Applied Physics
dc.relation.isversionof 10.1063/1.3273359
dc.title Surface plasmon resonance in nanostructured metal films under the Kretschmann configuration
dc.type Journal article
dc.description.version Version of Record
duke.date.pubdate 2009-12-15
duke.description.issue 12
duke.description.volume 106
dc.relation.journal Journal of Applied Physics
pubs.begin-page 124314
pubs.issue 12
pubs.organisational-group Duke
pubs.organisational-group Electrical and Computer Engineering
pubs.organisational-group Pratt School of Engineering
pubs.publication-status Published
pubs.volume 106


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