Abstract
We demonstrate that metamaterial devices requiring anisotropic dielectric permittivity and magnetic permeability may be emulated by specially designed tapered waveguides. This approach leads to low-loss, broadband performance. Based on this technique, we demonstrate broadband electromagnetic cloaking in the visible frequency range on a scale times larger than the wavelength.
- Received 13 February 2009
DOI:https://doi.org/10.1103/PhysRevLett.102.213901
©2009 American Physical Society