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Proceedings Paper

Topologically protected embedded eigenstates, leaky modes, and Jordan modes
Author(s): Francesco Monticone
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Paper Abstract

In this paper, we review our recent research efforts on “open” topological photonic structures in the presence of radiation loss or material loss/gain. We focus on three main topics: (a) The topological nature of embedded eigenstates, or bound states in the continuum, in suitably engineered dielectric metasurfaces; (b) Open topological wave-guiding structures with radiation loss, which support topologically-protected one-way leaky modes that may act as a bridge between freespace radiation and unidirectional guided waves; (c) Non-Hermitian topological waveguides with gain and loss, which exhibit exceptional points of degeneracy accompanied by anomalous topologically-protected propagation properties.

Paper Details

Date Published: 19 September 2018
PDF: 5 pages
Proc. SPIE 10719, Metamaterials, Metadevices, and Metasystems 2018, 107190S (19 September 2018); doi: 10.1117/12.2321320
Show Author Affiliations
Francesco Monticone, Cornell Univ. (United States)

Published in SPIE Proceedings Vol. 10719:
Metamaterials, Metadevices, and Metasystems 2018
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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