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Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Sep;72(3):036603. doi: 10.1103/PhysRevE.72.036603. Epub 2005 Sep 08.

Dispersion properties of nonradiating configurations: finite-difference time-domain modeling.

Physical review. E, Statistical, nonlinear, and soft matter physics

A D Boardman, K Marinov, N Zheludev, V A Fedotov

Affiliations

  1. Photonics and Nonlinear Science Group, Joule Laboratory, Department of Physics, University of Salford, Salford M5 4WT, United Kingdom.

PMID: 16241588 DOI: 10.1103/PhysRevE.72.036603

Abstract

A finite-difference time-domain (FDTD) numerical analysis is used to demonstrate that a toroidal solenoid, coaxial with an electric dipole, is a remarkable nonradiating configuration. It can be used to measure the dielectric permittivity of any ambient matter. It becomes a directional radiator at an interface between two dielectric media, depositing energy in the material with the highest polarizability.

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