prikaz prve stranice dokumenta Nonlinear control of photonic higher-order topological bound states in the continuum
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Scientific paper - Original scientific paper
Nonlinear control of photonic higher-order topological bound states in the continuum
Light-Science & Applications, 10 (2019); 164. https://doi.org/10.1038/s41377-021-00607-5
Hu, Zhichan; Bongiovanni, Domenico; Jukić, Dario; Jajtić, Ema; Xia, Shiqi; Song, Daohong; Xu, Jingjun; Morandotti, Roberto; Buljan, Hrvoje; Chen, Zhigang

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

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Hu, Z., Bongiovanni, D., Jukić, D., Jajtić, E., Xia, S., Song, D. ... Chen, Z. (2019). Nonlinear control of photonic higher-order topological bound states in the continuum. Light-Science & Applications, 10.. doi: 10.1038/s41377-021-00607-5

Hu, Zhichan, et al. "Nonlinear control of photonic higher-order topological bound states in the continuum." Light-Science & Applications, vol. 10, 2019. https://doi.org/10.1038/s41377-021-00607-5

Hu, Zhichan, Domenico Bongiovanni, Dario Jukić, Ema Jajtić, Shiqi Xia, Daohong Song, Jingjun Xu, Roberto Morandotti, Hrvoje Buljan and Zhigang Chen. "Nonlinear control of photonic higher-order topological bound states in the continuum." Light-Science & Applications 10 (2019). https://doi.org/10.1038/s41377-021-00607-5

Hu, Z., et al. (2019) 'Nonlinear control of photonic higher-order topological bound states in the continuum', Light-Science & Applications, 10. doi: 10.1038/s41377-021-00607-5

Hu Z, Bongiovanni D, Jukić D, Jajtić E, Xia S, Song D, and sur.. Nonlinear control of photonic higher-order topological bound states in the continuum. Light-Science & Applications [Internet]. 2019 [cited 2024 November 18];10. doi: 10.1038/s41377-021-00607-5

Z. Hu, et al., "Nonlinear control of photonic higher-order topological bound states in the continuum", Light-Science & Applications, vol. 10, 2019. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:237:028771. [Accessed: 18 November 2024]

Metadata
Title (english)Nonlinear control of photonic higher-order topological bound states in the continuum
AuthorZhichan Hu
AuthorDomenico Bongiovanni
AuthorDario Jukić
AuthorEma Jajtić
AuthorShiqi Xia
AuthorDaohong Song
AuthorJingjun Xu
AuthorRoberto Morandotti
AuthorHrvoje Buljan
AuthorZhigang Chen
Author's institutionUniversity of Zagreb
Faculty of Civil Engineering
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Civil Engineering
Abstract (english)
Higher-order topological insulators (HOTIs) are recently discovered topological phases, possessing symmetry-protected corner states with fractional charges. An unexpected connection between these states and the seemingly unrelated phenomenon of bound states in the continuum (BICs) was recently unveiled. When nonlinearity is added to the HOTI system, a number of fundamentally important questions arise. For example, how does nonlinearity couple higher-order topological BICs with the rest of the system, including continuum states? In fact, thus far BICs in nonlinear HOTIs have remained unexplored. Here we unveil the interplay of nonlinearity, higher-order topology, and BICs in a photonic platform. We observe topological corner states that are also BICs in a laser-written second-order topological lattice and further demonstrate their nonlinear coupling with edge (but not bulk) modes under the proper action of both self-focusing and defocusing nonlinearities. Theoretically, we calculate the eigenvalue spectrum and analog of the Zak phase in the nonlinear regime, illustrating that a topological BIC can be actively tuned by nonlinearity in such a photonic HOTI. Our studies are applicable to other nonlinear HOTI systems, with promising applications in emerging topology-driven devices.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleLight-Science & Applications
Numberingvol. 10, 164
e-ISSN2047-7538
DOIhttps://doi.org/10.1038/s41377-021-00607-5
URN:NBNurn:nbn:hr:237:028771
Publication2019
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-09-04 09:28:57