Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Hang Zhi Hong"'
Autor:
Yang Yuting, Zhang Juyi, Yang Bin, Liu Shiyu, Zhang Wenjie, Shen Xiaopeng, Shi Liwei, Hang Zhi Hong
Publikováno v:
Nanophotonics, Vol 13, Iss 20, Pp 3847-3854 (2024)
The metamaterial with artificial synthetic gauge field has been proved as an excellent platform to manipulate the transport of the electromagnetic wave. Here we propose an inhomogeneous spoof surface plasmonic metasurface to construct an in-plane pse
Externí odkaz:
https://doaj.org/article/1497b9128ed04ec1b4c843e95e98934d
Publikováno v:
Nanophotonics, Vol 12, Iss 22, Pp 4195-4204 (2023)
Coherent perfect absorption (CPA), as time-reversed lasing, arises from appropriate wave interference within absorbers, offering flexible control over wave absorption. Typically, this control involves tuning the phase difference between two counter-p
Externí odkaz:
https://doaj.org/article/f8baf9a870dd404a84d6af5227929466
Autor:
Zhao, Wei, Chen, Jia-He, Cheng, Shu-Guang, Mao, Yong, Zhang, Xiaojun, Tao, Zhi, Jiang, Hua, Hang, Zhi Hong
Topological acoustics provides new opportunities for materials with unprecedented functions. In this work, we report a design of topological valley acoustic interferometers by Y-shaped valley sonic crystals. By tight-bounding calculation and experime
Externí odkaz:
http://arxiv.org/abs/2409.07221
Publikováno v:
Phys. Rev. Res. 5, 043034 (2023)
The study of topological states has developed rapidly in electric circuits, which permits flexible fabrications of non-Hermitian systems by introducing non-Hermitian terms. Here, nonreciprocal coupling terms are realized by utilizing a voltage follow
Externí odkaz:
http://arxiv.org/abs/2306.13454
Publikováno v:
Phys. Rev. Lett. 127, 123902 (2021)
We report a realization of three-dimensional (3D) electromagnetic void space. Despite occupying a finite volume of space, such a medium is optically equivalent to an infinitesimal point where electromagnetic waves experience no phase accumulation. Th
Externí odkaz:
http://arxiv.org/abs/2012.13547
Publikováno v:
Phys. Rev. B 102, 245144 (2020)
An astroid-shaped loop of exceptional points (EPs), comprising four cusps, is found to spawn from the triple degeneracy point in the Brillouin zone (BZ) of a Lieb lattice with nearest-neighbor hoppings when non-Hermiticity is introduced. The occurren
Externí odkaz:
http://arxiv.org/abs/2010.06350
Publikováno v:
Sci. China-Phys. Mec. Astron. 64(5), 257011 (2021)
We constructed an electrical circuit to realize a modified Haldane lattice exhibiting the unusual phenomenon of antichiral edge states. The circuit consists of a network of inductors and capacitors with interconnections reproducing the effects of a m
Externí odkaz:
http://arxiv.org/abs/2008.10161
Publikováno v:
Phys. Rev. B 99, 241403 (2019)
A pair of anisotropic exceptional points (EPs) of arbitrary order are found in a class of non-Hermitian random systems with asymmetric hoppings. Both eigenvalues and eigenvectors exhibit distinct behaviors when these anisotropic EPs are approached fr
Externí odkaz:
http://arxiv.org/abs/1903.01737
Publikováno v:
Science Bulletin, 65, 531 (2020)
Based on the tight-binding model calculations and photonic experimental visualization on graphene, we report the domain-wall-induced gapped topological kink states and topological corner states. In graphene, domain walls with gapless topological kink
Externí odkaz:
http://arxiv.org/abs/1903.01816
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