Study of resonant modes of a periodic metallic array near a dielectric interface: Evanescent-to-propagating coupling via surface plasmon excitation
The structural modes of a 2D periodic array of metallic cylinders near a dielectric interface are studied, for large and small wavelength-to-period ratios. We show that there are two clearly distinguished kinds of resonances: waveguide modes of the gap between the array and the interface, and eigenm...
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2006
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14644258_v8_n3_p259_Skigin http://hdl.handle.net/20.500.12110/paper_14644258_v8_n3_p259_Skigin |
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paper:paper_14644258_v8_n3_p259_Skigin2023-06-08T16:16:47Z Study of resonant modes of a periodic metallic array near a dielectric interface: Evanescent-to-propagating coupling via surface plasmon excitation Skigin, Diana Carina Lester, Marcelo Anomaly Enhanced transmission Grating-waveguide structures Resonances Surface plasmons Enhanced transmission Grating waveguide structures Surface plasmons Couplings Dielectric materials Diffraction gratings Metallic compounds Optical waveguides Acoustic arrays The structural modes of a 2D periodic array of metallic cylinders near a dielectric interface are studied, for large and small wavelength-to-period ratios. We show that there are two clearly distinguished kinds of resonances: waveguide modes of the gap between the array and the interface, and eigenmode excitations (plasmons). While waveguide modes are present for both polarizations, surface plasmon polaritons (SPPs) only occur for p polarization, and, under particular conditions, this mechanism can produce an efficient coupling (about 60%) between the incident evanescent wave and the eigenmodes supported by the structure, which produces an enhanced transmitted propagating order. The response of the structure is analysed in detail by varying its relevant parameters, paying particular attention to the interplay between SPPs and Rayleigh anomalies, and its effect on the grating response. © 2006 IOP Publishing Ltd. Fil:Skigin, D.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lester, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14644258_v8_n3_p259_Skigin http://hdl.handle.net/20.500.12110/paper_14644258_v8_n3_p259_Skigin |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Anomaly Enhanced transmission Grating-waveguide structures Resonances Surface plasmons Enhanced transmission Grating waveguide structures Surface plasmons Couplings Dielectric materials Diffraction gratings Metallic compounds Optical waveguides Acoustic arrays |
| spellingShingle |
Anomaly Enhanced transmission Grating-waveguide structures Resonances Surface plasmons Enhanced transmission Grating waveguide structures Surface plasmons Couplings Dielectric materials Diffraction gratings Metallic compounds Optical waveguides Acoustic arrays Skigin, Diana Carina Lester, Marcelo Study of resonant modes of a periodic metallic array near a dielectric interface: Evanescent-to-propagating coupling via surface plasmon excitation |
| topic_facet |
Anomaly Enhanced transmission Grating-waveguide structures Resonances Surface plasmons Enhanced transmission Grating waveguide structures Surface plasmons Couplings Dielectric materials Diffraction gratings Metallic compounds Optical waveguides Acoustic arrays |
| description |
The structural modes of a 2D periodic array of metallic cylinders near a dielectric interface are studied, for large and small wavelength-to-period ratios. We show that there are two clearly distinguished kinds of resonances: waveguide modes of the gap between the array and the interface, and eigenmode excitations (plasmons). While waveguide modes are present for both polarizations, surface plasmon polaritons (SPPs) only occur for p polarization, and, under particular conditions, this mechanism can produce an efficient coupling (about 60%) between the incident evanescent wave and the eigenmodes supported by the structure, which produces an enhanced transmitted propagating order. The response of the structure is analysed in detail by varying its relevant parameters, paying particular attention to the interplay between SPPs and Rayleigh anomalies, and its effect on the grating response. © 2006 IOP Publishing Ltd. |
| author |
Skigin, Diana Carina Lester, Marcelo |
| author_facet |
Skigin, Diana Carina Lester, Marcelo |
| author_sort |
Skigin, Diana Carina |
| title |
Study of resonant modes of a periodic metallic array near a dielectric interface: Evanescent-to-propagating coupling via surface plasmon excitation |
| title_short |
Study of resonant modes of a periodic metallic array near a dielectric interface: Evanescent-to-propagating coupling via surface plasmon excitation |
| title_full |
Study of resonant modes of a periodic metallic array near a dielectric interface: Evanescent-to-propagating coupling via surface plasmon excitation |
| title_fullStr |
Study of resonant modes of a periodic metallic array near a dielectric interface: Evanescent-to-propagating coupling via surface plasmon excitation |
| title_full_unstemmed |
Study of resonant modes of a periodic metallic array near a dielectric interface: Evanescent-to-propagating coupling via surface plasmon excitation |
| title_sort |
study of resonant modes of a periodic metallic array near a dielectric interface: evanescent-to-propagating coupling via surface plasmon excitation |
| publishDate |
2006 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14644258_v8_n3_p259_Skigin http://hdl.handle.net/20.500.12110/paper_14644258_v8_n3_p259_Skigin |
| work_keys_str_mv |
AT skigindianacarina studyofresonantmodesofaperiodicmetallicarraynearadielectricinterfaceevanescenttopropagatingcouplingviasurfaceplasmonexcitation AT lestermarcelo studyofresonantmodesofaperiodicmetallicarraynearadielectricinterfaceevanescenttopropagatingcouplingviasurfaceplasmonexcitation |
| _version_ |
1768543961648988160 |