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.
Keywords
Cite
@article{arxiv.1207.7030,
title = {Magnetic energy harvesting and concentration at distance by transformation optics},
author = {Carles Navau and Jordi-Prat Camps and Alvaro Sanchez},
journal= {arXiv preprint arXiv:1207.7030},
year = {2015}
}
Comments
15 pages, 5 figures