Metasurfaces with Interleaved Electric and Magnetic Resonances for Broadband Arbitrary Group Delay in Reflection
Applied Physics
2019-02-05 v1
Abstract
Metasurfaces impart phase discontinuities on impinging electromagnetic waves that are typically limited to 0-2. Here, we show that they can break free from this limitation and supply arbitrarily-large phase modulation over ultra-wide bandwidths. This is achieved by implementing multiple, properly-arranged resonances in the electric and magnetic sheet admittivities. We demonstrate metasurfaces that can perfectly reflect a broadband pulse imparting a prescribed group delay without distorting the pulse shape, opening new possibilities for temporal control and dispersion engineering across deeply subwavelength physical scales.
Keywords
Cite
@article{arxiv.1902.01121,
title = {Metasurfaces with Interleaved Electric and Magnetic Resonances for Broadband Arbitrary Group Delay in Reflection},
author = {Odysseas Tsilipakos and Thomas Koschny and Costas M. Soukoulis},
journal= {arXiv preprint arXiv:1902.01121},
year = {2019}
}
Comments
3 pages, 3 figures, 2018 12th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials)