Resonant isotropic optical magnetism of plasmonic nanoclusters in visible light

Article

关键词: SPHERICAL NANOCLUSTERS;    GOLD NANOPARTICLES;    REFRACTIVE-INDEX;    EQUAL CIRCLES;    METAMATERIALS;    PERMEABILITY;    PACKING;    SIZE;   

DOI  :  10.1103/PhysRevB.92.220414

来源: SCIE

【 摘 要 】

We present a full experimental characterization of isotropic artificial optical magnetism at visible frequencies produced by raspberrylike plasmonic nanoclusters synthesized by a bottom-up approach. Experimental measurements of extinction and light scattering associated with numerical simulations enable one to extract absolute values of the magnetic scattering cross section across the whole visible spectral range. The strength of the resonant magnetic response of a single magnetic nanocluster is illustrated as the effective magnetic permeability of a homogeneous sphere of identical volume.

【 授权许可】

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