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Scientific paper - Original scientific paper
Nontrivial coupling of light into a defect: the interplay of nonlinearity and topology
Light: Science & Applications, 9 (2020); 1-10. https://doi.org/10.1038/s41377-020-00371-y
Xia, Shiqi; Jukić, Dario; Wang, Nan; Smirnova, Daria; Smirnov, Lev; Tang, Liqin; Song, Daohong; Szameit, Alexander; Leykam, Daniel; Xu, Jingjun; Chen, Zhigang; Buljan, Hrvoje

Institutional repository: Repository of the Faculty of Civil Engineering, University of Zagreb

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Xia, S., Jukić, D., Wang, N., Smirnova, D., Smirnov, L., Tang, L. ... Buljan, H. (2020). Nontrivial coupling of light into a defect: the interplay of nonlinearity and topology. Light: Science & Applications, 9., 1-10. doi: 10.1038/s41377-020-00371-y

Xia, Shiqi, et al. "Nontrivial coupling of light into a defect: the interplay of nonlinearity and topology." Light: Science & Applications, vol. 9, 2020, pp. 1-10. https://doi.org/10.1038/s41377-020-00371-y

Xia, Shiqi, Dario Jukić, Nan Wang, Daria Smirnova, Lev Smirnov, Liqin Tang, Daohong Song, et al. "Nontrivial coupling of light into a defect: the interplay of nonlinearity and topology." Light: Science & Applications 9 (2020): 1-10. https://doi.org/10.1038/s41377-020-00371-y

Xia, S., et al. (2020) 'Nontrivial coupling of light into a defect: the interplay of nonlinearity and topology', Light: Science & Applications, 9, pp. 1-10. doi: 10.1038/s41377-020-00371-y

Xia S, Jukić D, Wang N, Smirnova D, Smirnov L, Tang L, and sur.. Nontrivial coupling of light into a defect: the interplay of nonlinearity and topology. Light: Science & Applications [Internet]. 2020 [cited 2024 December 20];9:1-10. doi: 10.1038/s41377-020-00371-y

S. Xia, et al., "Nontrivial coupling of light into a defect: the interplay of nonlinearity and topology", Light: Science & Applications, vol. 9, pp. 1-10, 2020. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:237:470844. [Accessed: 20 December 2024]

Metadata
Title (english)Nontrivial coupling of light into a defect: the interplay of nonlinearity and topology
AuthorShiqi Xia
AuthorDario Jukić
AuthorNan Wang
AuthorDaria Smirnova
AuthorLev Smirnov
AuthorLiqin Tang
AuthorDaohong Song
AuthorAlexander Szameit
AuthorDaniel Leykam
AuthorJingjun Xu
AuthorZhigang Chen
AuthorHrvoje Buljan
Author's institutionUniversity of Zagreb
Faculty of Civil Engineering
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Civil Engineering
Abstract (english)
The flourishing of topological photonics in the last decade was achieved mainly due to developments in linear topological photonic structures. However, when nonlinearity is introduced, many intriguing questions arise. For example, are there universal fingerprints of underlying topology when modes are coupled by nonlinearity, and what can happen to topological invariants during nonlinear propagation? To explore these questions, here we experimentally demonstrate nonlinearity-induced coupling to topologically protected edge states using a photonic platform, and theoretically develop a general framework for interpreting the mode-coupling dynamics in nonlinear topological systems. Performed in laser-written photonic Su-Schrieffer-Heeger lattices, our experiments reveal nonlinear coupling of light into a nontrivial edge or interface defect channel otherwise not permissible due to topological protection. Our theory explains well all the observations. Furthermore, we introduce the concepts of inherited and emergent nonlinear topological phenomena, and a protocol capable of unveiling the interplay of nonlinearity and topology. These concepts are applicable for other nonlinear topological systems, either in higher dimensions or beyond our photonic platform.
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewUnknown
Publication versionPublished version
Journal titleLight: Science & Applications
Numberingvol. 9, pp. 1-10
p-ISSN2047-7538
DOIhttps://doi.org/10.1038/s41377-020-00371-y
URN:NBNurn:nbn:hr:237:470844
Publication2020
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-09-04 08:16:11