Passive Pt-Symmetric Metasurfaces With Directional Field Scattering Characteristics

Keywords

Directional scattering; metasurfaces; PTsymmetry

Abstract

We show that passive parity-time (PT) symmetric metasurfaces can be utilized to appropriately engineer the resulting far-field characteristics. Such PT-symmetric structures are capable of eliminating diffraction orders in specific directions, while maintaining or even enhancing the remaining orders. A systematic methodology is developed to implement this class of metasurfaces in both one-dimensional and two-dimensional geometries. In two-dimensional systems, PT symmetry can be established by employing either H-like diffractive elements or diatomic oblique Bravais lattices.

Publication Date

9-1-2016

Publication Title

IEEE Journal of Selected Topics in Quantum Electronics

Volume

22

Issue

5

Number of Pages

107-114

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/JSTQE.2016.2537798

Socpus ID

84977494999 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84977494999

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