Fizika Nizkikh Temperatur: Volume 45, Number 9 (September 2019), p. 1201-1207
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Localized edge modes in discrete photonic and phononic systems (Review Article)
Yuri Kivshar
Nonlinear Physics Center, Australian National University, Canberra ACT 2601, Australia
ITMO University, St. Petersburg 197101, Russia
E-mail: ysk@internode.on.net
Received March 14, 2019, published online July 26, 2019
Abstract
In this Review we discuss three examples of different physical systems where the energy localization occurs at the edges due to nonlinearity, topology, or curvature. In many of such systems, the existence of localized edge modes and their properties can be verified experimentally, as for the case of arrays of weakly coupled optical waveguides.
Key words: edge modes, nonlinearity, topology, discrete systems.
