Artículo
Surface plasmon dispersion engineering for optimizing scattering, emission, and radiation properties on a graphene spherical device
Fecha de publicación:
05/2020
Editorial:
Optical Society of America
Revista:
Applied Optics
ISSN:
1559-128X
e-ISSN:
2155-3165
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present a dispersion engineering method based on the rigorous electromagnetic theory to study the scattering properties of a double graphene layer spherical structure. The localized surface plasmons (LSPs) supported by the structure provide resonance channels that lead to an enhancement of the electromagnetic cross section. The method is used to find conditions under which two different multipolar LSP resonances occur at the same frequency value. The superscattering feature under these conditions is revealed by an extraordinary enhancement of the scattering cross section when the structure is illuminated by a plane wave field. Moreover, by studying the behavior of a single emitter localized near the graphene sphere, we show that the spontaneous emission and radiation efficiencies are also largely enhanced when the two different LSP resonances overlap.
Palabras clave:
Plasmonics
,
Graphene
,
Super scattering
,
sSpontaneous emission
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Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Gingins, Marcelo; Cuevas, Mauro; Depine, Ricardo Angel; Surface plasmon dispersion engineering for optimizing scattering, emission, and radiation properties on a graphene spherical device; Optical Society of America; Applied Optics; 59; 14; 5-2020; 4254-4262
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