Zobrazeno 1 - 10
of 147
pro vyhledávání: '"You Jian Wei"'
Publikováno v:
Nanophotonics, Vol 13, Iss 18, Pp 3437-3448 (2024)
Dielectric metasurfaces open new avenues in nonlinear optics through their remarkable capability of boosting frequency conversion efficiency of nonlinear optical interactions. Here, a metasurface consisting of a square array of cruciform-shaped silic
Externí odkaz:
https://doaj.org/article/31fdbee0f6db4a36817de75c81eba78c
Autor:
Xiao Qiang, Ma Qian, Ning Yu Ming, Chen Long, Liu Shuo, Zhang Jingjing, You Jian Wei, Cui Tie Jun
Publikováno v:
Nanophotonics, Vol 13, Iss 12, Pp 2141-2149 (2024)
We propose a programmable topological metasurface to integrate intelligent modulations of spatial and surface waves. A general design method is presented to design the programmable metasurface elements with PIN diodes. The surface waves can be contro
Externí odkaz:
https://doaj.org/article/102255b31e3e43f193529566a6baf58b
Autor:
Zhai, Siyu, He, Zhibo, Cong, Xiaofeng, Hou, Junming, Gui, Jie, You, Jian Wei, Gong, Xin, Kwok, James Tin-Yau, Tang, Yuan Yan
Learning-based methods for underwater image enhancement (UWIE) have undergone extensive exploration. However, learning-based models are usually vulnerable to adversarial examples so as the UWIE models. To the best of our knowledge, there is no compre
Externí odkaz:
http://arxiv.org/abs/2409.06420
Autor:
Li, Xinyu, You, Jian Wei, Gu, Ze, Ma, Qian, Chen, Long, Zhang, Jingyuan, Jin, Shi, Cui, Tie Jun
Reconfigurable intelligent surfaces (RISs) have flexible and exceptional performance in manipulating electromagnetic waves and customizing wireless channels. These capabilities enable them to provide a plethora of valuable activity-related informatio
Externí odkaz:
http://arxiv.org/abs/2311.07873
We demonstrate that the influence of Kerr effect on valley-Hall topological transport in graphene metasurfaces can be used to implement an all-optical switch. In particular, by taking advantage of the large Kerr coefficient of graphene, the index of
Externí odkaz:
http://arxiv.org/abs/2301.01332
Autor:
You, Jian Wei, Lan, Zhihao, Ma, Qian, Gao, Zhen, Yang, Yihao, Gao, Fei, Xiao, Meng, Cui, Tie Jun
Metasurfaces are subwavelength structured thin films consisting of arrays of units that allow the controls of polarization, phase and amplitude of light over a subwavelength thickness. The recent developments in topological photonics have greatly bro
Externí odkaz:
http://arxiv.org/abs/2212.12929
Publikováno v:
Phys. Rev. A 107, L041501 (2023)
Topological photonic edge states are conventionally formed at the interface between two domains of topologically trivial and nontrivial photonic crystals. Recent works exploiting photonic quantum Hall and quantum valley Hall effects have shown that l
Externí odkaz:
http://arxiv.org/abs/2210.09491
We derive the $\mathcal{T}$-matrix formalism tailored for the numerical analysis of second-harmonic (SH) generation from arbitrarily-shaped particles made of centrosymmetric optical materials. First, the transfer matrix of a single particle is comput
Externí odkaz:
http://arxiv.org/abs/2208.13977
Publikováno v:
Journal of Applied Physics; 7/7/2024, Vol. 136 Issue 1, p1-7, 7p
In this article, we present a $T$-matrix method for numerical computation of second-harmonic generation from clusters of arbitrarily distributed spherical particles made of centrosymmetric optical materials. The electromagnetic fields at the fundamen
Externí odkaz:
http://arxiv.org/abs/2102.09266