Switchable Hyperbolic Metamaterials With Magnetic Control

Details Switchable Hyperbolic Metamaterials With Magnetic Control Switchable Hyperbolic Metamaterials With Magnetic Control

2012-03-06

arxiv.org/abs/1203.1083v1

Physics

Optics

Scientific paper

A switchable hyperbolic material (SHM) is investigated, with which one can turn on or off the hyperbolic dispersion of the material via magnetic control. The SHM has simple structure, with a one-dimensional periodic stacking of dielectric layer and gyromagnetic layer. The hyperbolic dispersion of SHM is due to the negative effective permeability of gyromagnetic layers, and it can be transformed into a regular circular dispersion when the d.c. magnetic field is switched off. This switchable dispersion transition is reversible, which may have great potential applications in many fields.

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