Metaweaves: Sector-Way Nonreciprocal Metasurfaces

Y. Mazor and Ben Z. Steinberg
Phys. Rev. Lett. 112, 153901 – Published 18 April 2014

Abstract

Confluent with the single dimension of time, breach of time-reversal symmetry is usually perceived as a one-dimensional concept. In its ultimate realization—the one-way guiding device—it allows optical propagation in one direction, say +z, and forbids it in the opposite direction z. Hence, in studies of time-reversal asymmetry the mapping tt is naturally associated with zz. However, strongly nonreciprocal or one-way nanoscale threads can be used to weave metasurfaces thus adding dimensions to this concept. In this new family of surfaces the aforementioned association cannot be made. An example of appropriate threads is the planar one-way particle chains based on the two-type rotation principle. The resulting surfaces—the metaweaves—possess generalized nonreciprocity such as “sector-way” propagation, and offer new possibilities for controlling light in thin surfaces. We study several metaweave designs and their asymmetries in the wave-vector space.

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  • Received 10 October 2013

DOI:https://doi.org/10.1103/PhysRevLett.112.153901

© 2014 American Physical Society

Authors & Affiliations

Y. Mazor and Ben Z. Steinberg*

  • School of Electrical Engineering, Tel Aviv University, Ramat-Aviv, Tel-Aviv 69978, Israel

  • *Corresponding author. steinber@eng.tau.ac.il

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Issue

Vol. 112, Iss. 15 — 18 April 2014

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