Nonlinear compact localized modes in flux-dressed octagonal-diamond photonic lattice

Tuning the values of artificial flux in the two-dimensional octagonal-diamond lattice drives topological phase transitions, including between singular and non-singular flatbands. We study the dynamical properties of nonlinear compact localized modes that can be continued from linear flatband modes....

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Published inarXiv.org
Main Authors Stojanovic, M G, Gundogdu, S, Leykam, D, Angelakis, D G, Stojanovic-Krasic, M, Stepic, M, Maluckov, A
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 26.11.2021
Subjects
Diamonds
Lattice vibration
Lattices
Nonlinearity
Phase transitions
Physics - Optics
Waveguides
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Summary:Tuning the values of artificial flux in the two-dimensional octagonal-diamond lattice drives topological phase transitions, including between singular and non-singular flatbands. We study the dynamical properties of nonlinear compact localized modes that can be continued from linear flatband modes. We show how the stability of the compact localized modes can be tuned by the nonlinearity strength or the applied artificial flux. Our model can be realized using ring resonator lattices or nonlinear waveguide arrays.
ISSN:2331-8422
DOI:10.48550/arxiv.2111.13387