Oblique launching of optical surface waves by a subwavelength slit
Entity
UAM. Departamento de Física Teórica de la Materia CondensadaPublisher
American Physical SocietyDate
2011-04-26Citation
10.1103/PhysRevB.83.155448
Physical Review B 83.15 (2011): 155448
ISSN
1550-235X (online); 1098-0121 (print)DOI
10.1103/PhysRevB.83.155448Funded by
The authors acknowledge support from the Spanish Ministr of Science and Innovation under Grant Nos. MAT2009-6609-C02 and CSD2007-046-NanoLight.es. A.Y.N. acknowledges the Juan de la Cierva Grant No. JCI-2008-3123Project
Gobierno de España. MAT2009- 06609-C02; Gobierno de España. CSD2007-046-Nanolight.esEditor's Version
http://dx.doi.org/10.1103/PhysRevB.83.155448Subjects
FísicaRights
© 2011 American Physical SocietyAbstract
The electromagnetic field on the metal surface launched by a subwavelength slit is analytically studied for the case when the fundamental mode inside the slit has a wave-vector component along the slit axis (conical mount). Both near-field and far-field regions are discussed, and the role of surface plasmon-polaritons and Norton waves is revealed. It is shown that the distance from the slit at which Norton waves are more intense than surface plasmons decreases with the parallel wave vector. Additionally, it is found that the s-polarization component, while present for any nonzero parallel wave vector, only weakly contributes to the Norton waves
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Google Scholar:Nikitin, A. Yu
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García Vidal, Fco. José
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Martín-Moreno, L.
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