Open AccessMultipolar effects on the dipolar polarizability of magneto-electric antennas
Author(s) -
Stefan Varault,
Brice Rolly,
Guillaume Boudarham,
Guillaume Demésy,
Brian Stout,
Nicolas Bonod
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.016444
Subject(s) - polarizability , dipole , electric field , physics , moment (physics) , planar , tensor (intrinsic definition) , limit (mathematics) , optics , magnetic dipole , electric dipole moment , transition dipole moment , field (mathematics) , computational physics , quantum electrodynamics , condensed matter physics , classical mechanics , quantum mechanics , geometry , mathematics , mathematical analysis , computer graphics (images) , molecule , computer science , pure mathematics
We show the important role played by the multipolar coupling between the illuminating field and magneto-electric scatterers even in the small particle limit (λ/10). A general multipolar method is presented which, for the case of planar non centrosymmetric particles, generates a simple expression for the polarizability tensor that directly links the dipolar moment to the incident field. The relevancy of this approach is demonstrated by comparing thoroughly the dipolar moments predicted by the method with full numerical calculations.