Towards Topological Protection based millimetre wave devices
Applied Physics
2019-09-11 v1 Optics
Abstract
Feasibility of Topological Metawaveguides supporting helical propagation in the microwave range has been recently proven. The advantages of unidirectional propagation supported by such waveguides however can only be exploited in real devices if topological modes are endowed with the capability to interact within themselves as well as with trivial modes. Here we show a modal launcher to interface a topological metawaveguide with conventional circular waveguides with negligible reflection and we exploit the properties of coupled topological modes to show a proof of concept of a topological contra-directional coupler.
Keywords
Cite
@article{arxiv.1908.05036,
title = {Towards Topological Protection based millimetre wave devices},
author = {Gian Guido Gentili and Giuseppe Pelosi and Francesco S. Piccioli and Stefano Selleri},
journal= {arXiv preprint arXiv:1908.05036},
year = {2019}
}
Comments
20 pages, 7 figures