PT Metamaterials via Complex-Coordinate Transformation Optics
Optics
2015-06-11 v2
Abstract
We extend the transformation-optics paradigm to a complex spatial coordinate domain, in order to deal with electromagnetic metamaterials characterized by balanced loss and gain, giving special emphasis to parity-time (PT) symmetric metamaterials. We apply this general theory to complex-source-point radiation and anisotropic transmission resonances, illustrating the capability and potentials of our approach in terms of systematic design, analytical modeling and physical insights into complex-coordinate wave-objects and resonant states.
Cite
@article{arxiv.1210.7629,
title = {PT Metamaterials via Complex-Coordinate Transformation Optics},
author = {Giuseppe Castaldi and Silvio Savoia and Vincenzo Galdi and Andrea Alu' and Nader Engheta},
journal= {arXiv preprint arXiv:1210.7629},
year = {2015}
}
Comments
5 pages, 3 figures; minor revisions in the text; supplementary material available online