Nonradiating anapole modes of dielectric particles in terahertz range

Pavel D. Terekhov,Kseniia V. Baryshnikova,Alexander S. Shalin,Andrey B. Evlyukhin,Irina A. Khromova

2016 Days on Diffraction (DD)（2016）

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摘要

In this paper, we demonstrate numerically that T1O2 microparticles can exhibit a destructive mode interference in the range 1-3 THz. Resonantly strong destructive interference of the toroidal and electric dipole contributions to the scattered field was achieved by a geometry tuning. An anapole mode can be observed as a composition of electric and toroidal dipole moments.

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关键词

nonradiating anapole modes,dielectric particles,terahertz range,numerical analysis,titania microparticles,destructive mode interference,geometry tuning,electric dipole moments,toroidal dipole moments,frequency 1 THz to 3 THz,TiO2

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