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Elusive Pure Anapole Excitation in Homogenous Spherical Nanoparticles with Radial Anisotropy

Liu, Wei; Lei, Bing; Shi, Jianhua; Hu, HaoJun; Miroshnichenko, Andrey


For homogenous isotropic dielectric nanospheres with incident plane waves, Cartesian electric and toroidal dipoles can be tunned to cancel each other in terms of far-field scattering, leading to the effective anopole excitation. At the same time however, other multipoles such as magnetic dipoles with comparable scattered power are simultanesouly excited, mixing with the anopole and leading to a nonnegligible total scattering cross-section. Here, we show that, for homogenous dielectric...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Journal of Nanomaterials
DOI: 10.1155/2015/672957
Access Rights: Open Access


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