Moulding the flow of surface plasmons using conformal and quasiconformal mappings
Entity
UAM. Departamento de Física Teórica de la Materia CondensadaPublisher
Institute of Physics Publishing (IOP)Date
2011-03-08Citation
10.1088/1367-2630/13/3/033011
New Journal of Physics 13 (2011): 033011
ISSN
1367-2630 (print)DOI
10.1088/1367-2630/13/3/033011Funded by
This work was sponsored by the Spanish Ministry of Science under projects MAT2009-06609-C02 and CSD2007-046-NanoLight. PAH acknowledges financial support from the Spanish Ministry of Education through grant no. AP2008-00021Editor's Version
http://dx.doi.org/10.1088/1367-2630/13/3/033011Subjects
FísicaRights
© IOP Publishing Ltd and Deutsche Physikalische GesellschaftAbstract
In this paper, we analyze how transformation optics recipes can be applied to control the flow of surface plasmons on metal-dielectric interfaces. We study in detail five different examples: a cylindrical cloak, a beam shifter, a right-angle bend, a lens and a ground-plane cloak. First, we demonstrate that only the modification of the electric permittivity and magnetic permeability in the dielectric side can lead to almost perfect functionalities for surface plasmons.We also show that, thanks to the quasi two-dimensional (2D) character of surface plasmons and their inherent polarization, applying conformal and quasiconformal mapping techniques allows one to design plasmonic devices in which only the isotropic refractive index of the dielectric film needs to be engineered
Files in this item
Google Scholar:Huidobro, Paloma A.
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Nesterov, Maxim L.
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Martín-Moreno, Luis
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García Vidal, Fco. José
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