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Near- and far-field scattering resonance frequency shift in dielectric and perfect electric conducting cylinders

Abstract: The ability to infer near-field scattering properties from far-field measurements is of paramount importance in nano-optics. Recently we derived an approximate formula for predicting the frequency shift between near- and far-field intensity peaks in the case of a dielectric sphere. In this work we demonstrate that almost an identical formula can be used to predict the resonance shift of a dielectric cylinder and a perfectly conducting cylinder. We find the redshift of the resonance peak of the perfect electric conducting cylinder to be approximately 2 orders of magnitude greater than for the dielectric cylinder. The errors in our approximate analytic formula for predicting the redshift are approximately only twice as great. Furthermore, we apply the redshift formula to a silicon cylinder and discuss its magneto-dielectric properties, which may be of interest in design of metamaterials.

 Fuente: Journal of the Optical Society of America A Vol. 33, Issue 3, pp. 391-395 (2016)

Editorial: Hasta 2008 incluído : Optical Society of America A partir de 2009: The Optical Society (OSA)

 Año de publicación: 2016

Nº de páginas: 5

Tipo de publicación: Artículo de Revista

 DOI: 10.1364/JOSAA.33.000391

ISSN: 1084-7529,1520-8532

Url de la publicación: https://doi.org/10.1364/JOSAA.33.000391

Autores/as

YUFFA, ALEX J.

YAEL GUTIERREZ VELA

JUAN MARCOS SANZ CASADO

RODRIGO ALCARAZ DE LA OSA

GORDEN WAYNE VIDEEN