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Abstract:

We study the double excitation of surface modes at a metallic film that separates a uniaxial medium from an isotropic dielectric. We find that, for certain constitutive parameters of the structure, two normal modes can be associated to the film. It is found that the distance in the complex plane between the propagation constants of these modes can be considerably reduced by tuning conveniently film parameters, although the propagation constants are "reluctant" to coincide. We also show that a plane wave incident on the film from the crystal side can excite both modes simultaneously, without corrugating the surface or adding another layer. We obtain values of the film width for which the resonances appear at similar angles of incidence and show that these excitations are accompanied by an important increase of the power absorbed by the film and an enhancement of the fields at the two interfaces. © 1997 Optical Society of America.

Registro:

Documento: Artículo
Título:Double excitation of surface modes at uniaxial-metal-isotropic films
Autor:Gigli, M.L.; Depine, R.A.
Filiación:Grupo de Electromagnetismo Aplicado, Departamento de Física, Ciudad Universitaria, Pabellón I, 1428 Buenos Aires, Argentina
Palabras clave:Anisotropy; Attenuation; Dielectric materials; Guided electromagnetic wave propagation; Light reflection; Resonance; Second harmonic generation; Surface waves; Tensors; Thin films; Attenuated total reflection (ATR); Dielectric media; Isotropic structures; Surface modes (SM); Metallic films
Año:1997
Volumen:1
Número:9
Página de inicio:250
Página de fin:260
DOI: http://dx.doi.org/10.1364/OE.1.000250
Título revista:Optics Express
Título revista abreviado:Opt. Express
ISSN:10944087
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10944087_v1_n9_p250_Gigli

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Citas:

---------- APA ----------
Gigli, M.L. & Depine, R.A. (1997) . Double excitation of surface modes at uniaxial-metal-isotropic films. Optics Express, 1(9), 250-260.
http://dx.doi.org/10.1364/OE.1.000250
---------- CHICAGO ----------
Gigli, M.L., Depine, R.A. "Double excitation of surface modes at uniaxial-metal-isotropic films" . Optics Express 1, no. 9 (1997) : 250-260.
http://dx.doi.org/10.1364/OE.1.000250
---------- MLA ----------
Gigli, M.L., Depine, R.A. "Double excitation of surface modes at uniaxial-metal-isotropic films" . Optics Express, vol. 1, no. 9, 1997, pp. 250-260.
http://dx.doi.org/10.1364/OE.1.000250
---------- VANCOUVER ----------
Gigli, M.L., Depine, R.A. Double excitation of surface modes at uniaxial-metal-isotropic films. Opt. Express. 1997;1(9):250-260.
http://dx.doi.org/10.1364/OE.1.000250