Zobrazeno 1 - 10
of 1 182
pro vyhledávání: '"Zhang, Yiqi"'
We discover a novel class of dissipative light bullets whose spatial profiles may be drastically reshaped along the bulk, edges and corners of the Su-Schrieffer-Heeger lattice owing to the dissipative and topological nature of the system. These light
Externí odkaz:
http://arxiv.org/abs/2410.05981
Publikováno v:
APL Photonics 9, 086113 (2024)
$\pi$ modes are unique topological edge states appearing in Floquet systems with periodic modulations of the underlying lattice structure in evolution variable, such as dynamically modulated Su-Schrieffer-Heeger (SSH) lattices. These edge states are
Externí odkaz:
http://arxiv.org/abs/2408.07323
Publikováno v:
Nanophotonics 13, 4047-4056 (2024)
Flat-band periodic materials are characterized by a linear spectrum containing at least one band where the propagation constant remains nearly constant irrespective of the Bloch momentum across the Brillouin zone. These materials provide a unique pla
Externí odkaz:
http://arxiv.org/abs/2407.11811
We propose a chiral bulk soliton in a nonlinear photonic lattice with decorated boundaries, presenting a novel approach to manipulate photonic transport without extensive bulk modifications. Unlike traditional methods that rely on topological edge an
Externí odkaz:
http://arxiv.org/abs/2407.08267
Publikováno v:
Optics Letters 49, 4110-4113 (2024)
The type-II Dirac cone is a special feature of the band structure, whose Fermi level is represented by a pair of crossing lines. It has been demonstrated that such a structure is useful for investigating topological edge solitons, and more specifical
Externí odkaz:
http://arxiv.org/abs/2407.05097
Publikováno v:
Photonics Research 12, 2078-2087 (2024)
Topological insulators are most frequently constructed using lattices with specific degeneracies in their linear spectra, such as Dirac points. For a broad class of lattices, such as honeycomb ones, these points and associated Dirac cones generally a
Externí odkaz:
http://arxiv.org/abs/2407.05086
Autor:
Kompanets, Victor O., Zhong, Hua, Zhang, Yiqi, Kartashov, Yaroslav V., Li, Yongdong, Zhuravitskii, Sergei A., Skryabin, Nikolay N., Dyakonov, Ivan V., Kalinkin, Alexander A., Kulik, Sergei P., Chekalin, Sergey V., Zadkov, Victor N.
Publikováno v:
Light: Science and Applications 13, 264 (2024)
Higher-order topological insulators (HOTIs) are unique materials hosting topologically protected states, whose dimensionality is at least by a factor of 2 lower than that of the bulk. Topological states in such insulators may be strongly confined in
Externí odkaz:
http://arxiv.org/abs/2402.01979
Publikováno v:
Physical Review Applied 20, 014012 (2023)
We show that one-dimensional Floquet trimer arrays with periodically oscillating waveguides support two different and co-existing types of topological Floquet edge states in two different topological gaps in Floquet spectrum. In these systems nontriv
Externí odkaz:
http://arxiv.org/abs/2309.07469
Autor:
Arkhipova, Antonina A., Zhang, Yiqi, Kartashov, Yaroslav V., Zhuravitskii, Sergei A., Skryabin, Nikolay N., Dyakonov, Ivan V., Kalinkin, Alexander A., Kulik, Sergei P., Kompanets, Victor O., Chekalin, Sergey V., Zadkov, Victor N.
Publikováno v:
Science Bulletin 68, 2017-2024 (2023)
Floquet systems with periodically varying in time parameters enable realization of unconventional topological phases that do not exist in static systems with constant parameters and that are frequently accompanied by appearance of novel types of the
Externí odkaz:
http://arxiv.org/abs/2307.12865
Autor:
Ren, Boquan, Arkhipova, A. A., Zhang, Yiqi, Kartashov, Y. V., Wang, Hongguang, Zhuravitskii, S. A., Skryabin, N. N., Dyakonov, I. V., Kalinkin, A. A., Kulik, S. P., Kompanets, V. O., Chekalin, S. V., Zadkov, V. N.
Publikováno v:
Light: Science and Applications 12, 194 (2023)
Introduction of controllable deformations into periodic materials that lead to disclinations in their structure opens novel routes for construction of higher-order topological insulators hosting topological states at disclinations. Appearance of thes
Externí odkaz:
http://arxiv.org/abs/2304.11936