Lossless propagation of magnetic dipole excitations on chains of dielectric particles with high refractive index

O. Zhuromskyy and U. Peschel

Phys. Rev. B 90, 125117 – Published 9 September 2014

Abstract

Lossless propagation of longitudinal magnetic dipole waves along chains of high-index subwavelength particles is predicted for a narrow frequency range around the magnetic Mie resonance of the individual particles. Mathematical analogies between dipole and magnetoinductive waves are used to reduce back-reflections thus improving the power transfer efficiency of respective particle waveguides. The proposed technique can be used to optimize the propagation of even more complex particle-based configurations.