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Frequency shift between near- and far-field scattering resonances in dielectric particles

Abstract: Abstract The near-field electromagnetic scattering intensity resonances are redshifted in frequency with respect to their far-field counterparts. We derive simple, approximate, analytical formulas for this shift in the case of a plane wave interacting with a dielectric sphere. Numerical results comparing the approximate formulas to the numerically exact solutions show that the two are in good agreement. We also consider the Rayleigh limit of the formulas to gain more insight into the phenomenon.

 Fuente: Journal of the Optical Society of America A, Vol. 32, No. 9 / September 2015

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

 Fecha de publicación: 01/09/2015

Nº de páginas: 5

Tipo de publicación: Artículo de Revista

 DOI: 10.1364/JOSAA.32.001638

ISSN: 1084-7529,1520-8532

Proyecto español: FIS2013-45854-P

Url de la publicación: https://doi.org/10.1364/JOSAA.32.001638

Autores/as

YUFFA, ALEX J.

YAEL GUTIERREZ VELA

JUAN MARCOS SANZ CASADO

RODRIGO ALCARAZ DE LA OSA

GORDEN WAYNE VIDEEN