@article {26643,
	title = {Active THz metasurfaces for compact isolation},
	journal = {J. Opt. Soc. Am. B},
	volume = {38},
	year = {2021},
	pages = {C191-C197},
	abstract = {<span>Metasurfaces constitute an emerging technology, allowing for compact manipulation of all degrees of freedom of an incident lightwave. A key ongoing challenge in the design of these structures is how to allow for energy-efficient dynamic (active) operation, particularly for the polarization of incident light, which other standard devices typically cannot efficiently act upon. Here, we present a quasi-two-dimensional magneto-optic metasurface capable of simultaneously high-contrast on/off operation, as well as rotation of the polarization angle of a linearly polarized wave{\textemdash}that is, without converting the incident linear polarization to elliptical, which is normally particularly challenging. Furthermore, the device{\textquoteright}s operation is broadband, with a bandwidth of around 5\&nbsp;{\textmu}m, and can be conveniently manipulated using an external magnetic bias. Our findings, corroborated using two different full-wave simulation approaches, may allow for functional metasurfaces operating in the terahertz (THz) regime, giving rise to robust, energy-efficient, and high-dynamic-range broadband isolation, to be used for a wealth of optoelectronic and communication applications.</span>},
	url = {https://doi.org/10.1364/JOSAB.430160},
	author = {E. Almpanis and G. P. Zouros and K. L. Tsakmakidis}
}
