Excitation of a plasmon resonance in metal cylinders by an evanescent wave

The magnetic field distribution and electric-field amplification factor are found in the gap between periodically arranged parallel metal cylinders scattering an evanescent wave. Such a wave appears if an original plane wave is incident from the dielectric substrate onto the interface at an angle of...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2015-01, Vol.45 (3), p.240-244
Main Authors: Nemykin, A.V., Perminov, S.V., Frumin, L.L., Shapiro, D.A.
Format: Article
Language:English
Subjects:
array of nanowires
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Company structure
CYLINDERS
DIELECTRIC MATERIALS
ELECTRIC FIELDS
Evanescent waves
EXCITATION
INCIDENCE ANGLE
MAGNETIC FIELDS
METALS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Plane waves
PLASMONS
REFLECTION
RESONANCE
SCATTERING
surface plasmon
total internal reflection
WAVE PROPAGATION
WAVELENGTHS
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Summary:The magnetic field distribution and electric-field amplification factor are found in the gap between periodically arranged parallel metal cylinders scattering an evanescent wave. Such a wave appears if an original plane wave is incident from the dielectric substrate onto the interface at an angle of total internal reflection. A substantial restructuring of the near-field distribution, which results from a small change in the angle of incidence, is revealed. Estimations of the angular dependence of the local field, explaining the shift and broadening of the plasmon resonance at a shorter wavelength, are presented.
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2015v045n03ABEH015632