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Abstract:

The excitation of phase resonances in dual-period wire structures under evanescent incidence is investigated and numerically reported for the first time. The diffraction problem of a compound structure comprising subwavelength perfectly conducting wires and slits near a dielectric interface is solved by the modal method, which has been extended to consider evanescent incidence via illumination under the total internal reflection condition. We demonstrate evanescent-to-propagating conversion in the transmitted intensity via resonances of different types, such as Fabry-Perot and Rayleigh anomalies. The results exhibit points in common with those obtained for simple structures (single wire/slit per period), but, on the other hand, there are striking differences, mainly arising from the excitation of phase resonances in the structure. These features allow an angular and spectral control of the transmitted response, which opens up new degrees of freedom for the design of input/output couplers and other devices. © 2015 IOP Publishing Ltd.

Registro:

Documento: Artículo
Título:Striking properties of light transmitted by a double period nanoslit structure under evanescent incidence
Autor:Lester, M.; Skigin, D.C.
Filiación:Centro de Investigaciones en Física e Ingeniería del Centro, Facultad de Ciencias Exactas, Universidad Nacional del Centro de la Provincia de Buenos Aires, Pinto 399, Buenos Aires, 7000, Argentina
CONICET, Argentina
Departamento de Física, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, Buenos Aires, C1428EHA, Argentina
IFIBA-CONICET, Argentina
Palabras clave:Dual-period structures; Enhanced transmission; Subwavelength slits; Degrees of freedom (mechanics); Fabry-Perot interferometers; Refractive index; Wire; Compound structures; Dielectric interface; Diffraction problem; Enhanced transmission; Nanoslit structures; Subwavelength slits; Total internal reflections; Transmitted intensities; Resonance
Año:2015
Volumen:17
Número:5
Página de inicio:1
Página de fin:10
DOI: http://dx.doi.org/10.1088/2040-8978/17/5/055601
Título revista:Journal of Optics (United Kingdom)
Título revista abreviado:J. Opt.
ISSN:20408978
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20408978_v17_n5_p1_Lester

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Citas:

---------- APA ----------
Lester, M. & Skigin, D.C. (2015) . Striking properties of light transmitted by a double period nanoslit structure under evanescent incidence. Journal of Optics (United Kingdom), 17(5), 1-10.
http://dx.doi.org/10.1088/2040-8978/17/5/055601
---------- CHICAGO ----------
Lester, M., Skigin, D.C. "Striking properties of light transmitted by a double period nanoslit structure under evanescent incidence" . Journal of Optics (United Kingdom) 17, no. 5 (2015) : 1-10.
http://dx.doi.org/10.1088/2040-8978/17/5/055601
---------- MLA ----------
Lester, M., Skigin, D.C. "Striking properties of light transmitted by a double period nanoslit structure under evanescent incidence" . Journal of Optics (United Kingdom), vol. 17, no. 5, 2015, pp. 1-10.
http://dx.doi.org/10.1088/2040-8978/17/5/055601
---------- VANCOUVER ----------
Lester, M., Skigin, D.C. Striking properties of light transmitted by a double period nanoslit structure under evanescent incidence. J. Opt. 2015;17(5):1-10.
http://dx.doi.org/10.1088/2040-8978/17/5/055601