Design of subwavelength superscattering nanospheres

We design a subwavelength superscattering nanosphere with plasmonic-dielectric-plasmonic layer structure. We show that the scattering cross section of such a particle can be significantly enhanced by employing multiple resonances with different total angular momenta, and by ensuring that all these r...

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Veröffentlicht in:Applied physics letters 2011-01, Vol.98 (4), p.043101-043101-3
Hauptverfasser: Ruan, Zhichao, Fan, Shanhui
Format: Artikel
Sprache:eng
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Zusammenfassung:We design a subwavelength superscattering nanosphere with plasmonic-dielectric-plasmonic layer structure. We show that the scattering cross section of such a particle can be significantly enhanced by employing multiple resonances with different total angular momenta, and by ensuring that all these resonances have almost the same frequency and operate in the overcoupling region.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3536475