Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Dezhuan Han"'
Publikováno v:
Results in Physics, Vol 46, Iss , Pp 106309- (2023)
Singular beam has attracted lots of research interests because of its great potential for applications in various fields such as optical communications and super-resolution imaging. To meet the increasing demands of integrated photonic systems, minia
Externí odkaz:
https://doaj.org/article/c852e265d2074592a06d0f12f97c75dc
Publikováno v:
Results in Physics, Vol 29, Iss , Pp 104815- (2021)
Metasurfaces can be used to control the phase, amplitude and polarization of light arbitrarily. Here, we design a transmission-type all dielectric metasurface to realize asymmetric off-axis light focusing which can focus transmitted light on differen
Externí odkaz:
https://doaj.org/article/40a1786b47584901b28deb640a673949
Publikováno v:
Results in Physics, Vol 24, Iss , Pp 104084- (2021)
Beam splitters are key photonic devices with wide applications in optical communication, interferometers, and spectroscopy. With the increasing demand for miniaturized and lightweight optical system, designing compact beam splitters becomes very impo
Externí odkaz:
https://doaj.org/article/2e1c8c64426e4a85ba5ec7649a99738d
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
The photonic valley-Hall effect can enable the unidirectional propagation of edge states, but often require covers which shield the states from direct measurement. Here, Wu et al. realize photonic valley-Hall effect using designer surface plasmons, e
Externí odkaz:
https://doaj.org/article/99abfb9d0dc74b398af11f474eb6dba8
Publikováno v:
New Journal of Physics, Vol 20, Iss 1, p 013035 (2018)
In addition to the well-known anti-ferromagnetic and ferromagnetic edge states in zigzag graphene nanoribbons (GNR), we find that there also exist some excited spin density wave (ESDW) states, the energies of which are close to the anti-ferromagnetic
Externí odkaz:
https://doaj.org/article/36320d07036f4a438d9544e7bad5d798
Autor:
Yan Meng, Xiaoxiao Wu, Ruo-Yang Zhang, Xin Li, Peng Hu, Lixin Ge, Yingzhou Huang, Hong Xiang, Dezhuan Han, Shuxia Wang, Weijia Wen
Publikováno v:
New Journal of Physics, Vol 20, Iss 7, p 073032 (2018)
The topological invariants of a periodic system can be used to define the topological phase of each band and determine the existence of topological interface states within a certain bandgap. Here, we propose a scheme based on the full phase diagrams,
Externí odkaz:
https://doaj.org/article/d7871ceb3bff4baeb9843edbd9a1bdf9
Publikováno v:
New Journal of Physics, Vol 18, Iss 10, p 103029 (2016)
In this paper, we investigate the band properties of 2D honeycomb plasmonic lattices consisting of metallic nanoparticles. By means of the coupled dipole method and quasi-static approximation, we theoretically analyze the band structures stemming fro
Externí odkaz:
https://doaj.org/article/ae03fdc5df3d45dd8ed22a69c505ee37
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5d4464b94e0917fe0f6432ee31e9142
https://doi.org/10.1103/physrevb.107.165142
https://doi.org/10.1103/physrevb.107.165142
Publikováno v:
Chinese Physics B.
Active control of surface plasmon polaritons (SPPs) is highly desired for nanophotonics. Here we employ a phase change material Ge2Sb2Te5 (GST) to actively manipulate the propagating direction of SPPs at the telecom wavelength. By utilizing the phase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f1a903a734824334de940c0c5bde2ad
https://doi.org/10.1088/1674-1056/accd5a
https://doi.org/10.1088/1674-1056/accd5a
A photonic-crystal slab can support bound states in the continuum (BICs) that have infinite lifetimes but are embedded into the continuous spectrum of optical modes in free space. The formation of BICs requires a total internal reflection (TIR) condi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d613a0a988f91c81e00a0c8f80be0f3d
http://arxiv.org/abs/2209.12776
http://arxiv.org/abs/2209.12776
