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Proceedings Paper

Edge modes of 2D photonic crystals with and without PT symmetry (Conference Presentation)
Author(s): Xiang Ni; Alexander B. Khanikaev; Alexander A. Lisyansky

Paper Abstract

Bulk spectrum and edge modes of 2D photonic crystals with parity and time-reversal symmetries broken in a different way are investigated. It is shown that for specific values of parameter of the symmetry reduction the bulk modes exhibit a peculiar one-way Dirac-like dispersion. The domain wall formed by two crystals with the symmetry reduction parameter reversed is shown to exhibit an edge mode which coexists with the one-way bulk Dirac regime. In addition, we demonstrate that parity-time symmetric interfaces between photonic crystals with gain and loss support a new class of dissipation-less surface modes.

Paper Details

Date Published: 7 November 2016
PDF: 1 pages
Proc. SPIE 9919, Nanophotonic Materials XIII, 99190B (7 November 2016); doi: 10.1117/12.2238219
Show Author Affiliations
Xiang Ni, The Graduate Ctr. (United States)
Queens College (United States)
Alexander B. Khanikaev, The Graduate Ctr. (United States)
Alexander A. Lisyansky, Queens College (United States)


Published in SPIE Proceedings Vol. 9919:
Nanophotonic Materials XIII
Stefano Cabrini; Gilles Lérondel; Adam M. Schwartzberg; Taleb Mokari, Editor(s)

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