Magnetic energy harvesting and concentration at distance by transformation optics

Abstract

Magnetic energy is one the main agents powering our society: generating energy in power plants, keeping information in magnetic memories, moving our devices with motors. All of these applications require a certain spatial distribution of magnetic energy, for example concentrating it in a transformer core or in a magnetic sensor. We introduce in this work a way to collect magnetic energy and distribute it in space with unprecedented efficiency and flexibility, allowing very large concentration of magnetic energy in a free space region, an enhanced magnetic coupling between two magnetic sources, and the transfer of magnetic energy from a source to a given distant point separated by empty space. All these features are achieved with a single device, a magnetic shell designed by transformation optics.

15 pages, 5 figures

References in corpus (3)

• Design of Electromagnetic Cloaks and Concentrators Using Form-Invariant Coordinate Transformations of Maxwell's Equations
• Antimagnets: Controlling magnetic fields with superconductor-metamaterial hybrids
• Magnetic superlens-enhanced inductive coupling for wireless power transfer

Cited by in corpus (23)

• Progress in Superconducting Metamaterials
• Transformation optics with Fabry-Pérot resonances
• Twisted toroidal vortex-solitons in inhomogeneous media with repulsive nonlinearity
• Long-Distance Transfer and Routing of Static Magnetic Fields
• Experimental realization of magnetic energy concentration and transmission at a distance by metamaterials
• Topology optimized permanent magnet systems
• Bifunctional Metamaterials with Simultaneous and Independent Manipulation of Thermal and Electric Fields
• Transforming magnets
• Magnetic illusion: transforming a magnetic object into another object by negative permeability
• Solitons and vortices in nonlinear potential wells
• A novel EM concentrator with open-concentrator region based on multi-folded transformation optics
• Negative permeability in magnetostatics and its experimental demonstration
• Manipulating magnetic fields in inaccessible regions by negative magnetic permeability
• A concentrator for static magnetic field
• Stable dipole solitons and soliton complexes in the nonlinear Schrodinger equation with periodically modulated nonlinearity
• A topology optimized switchable permanent magnet system
• Increasing efficiency of a wireless energy transfer system by spatial translational transformation
• Metamaterial anisotropic flux concentrators and magnetic arrays
• Dimensional Crossover of Microscopic Magnetic Metasurfaces for Magnetic Field Amplification
• The magnetic properties of the hollow cylindrical ideal remanence magnet
• Low-Q whispering gallery modes in anisotropic metamaterial shells
• Shaping Magnetic Fields with Zero-Magnetic-Permeability Media
• Transportation of Static Magnetic Fields by a practically realizable Magnetic Hose