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Accueil > Publications > 2015

Resonant isotropic optical magnetism of plasmonic nanoclusters in visible light

par Salmon Jean-Baptiste - publié le

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.