Zobrazeno 1 - 10
of 1 669
pro vyhledávání: '"Zhang, Ruo"'
Autor:
Chen, Xiao-Dong, Gao, Zi-Xuan, Cui, Xiaohan, Mo, Hao-Chang, Chen, Wen-Jie, Zhang, Ruo-Yang, Chan, C. T., Dong, Jian-Wen
Disorder, which is ubiquitous in nature, has been extensively explored in photonics for understanding the fundamental principles of light diffusion and localization, as well as for applications in functional resonators and random lasers. Recently, th
Externí odkaz:
http://arxiv.org/abs/2408.07267
Autor:
Zhang, Ruo-Yang, Cui, Xiaohan, Zeng, Yuan-Song, Chen, Jin, Liu, Wenzhe, Wang, Mudi, Wang, Dongyang, Zhang, Zhao-Qing, Wang, Neng, Wu, Geng-Bo, Chan, C. T.
Photonic double-zero-index media, distinguished by concurrently zero-valued permittivity and permeability, exhibit extraordinary properties not found in nature. Remarkably, the notion of zero-index can be substantially expanded by generalizing the co
Externí odkaz:
http://arxiv.org/abs/2408.06182
Autor:
Chen, Zhao-Xian, Zhang, Yuan-hong, Sun, Xiao-Chen, Zhang, Ruo-Yang, Tang, Jiang-Shan, Yang, Xin, Zhu, Xue-Feng, Lu, Yan-Qing
Mathematically, topological invariants arise from the parallel transport of eigenstates on the energy bands, which, in physics, correspond to the adiabatic dynamical evolution of transient states. It determines the presence of boundary states, while
Externí odkaz:
http://arxiv.org/abs/2408.02984
Autor:
Wang, Mudi, Zhang, Ruo-Yang, Zhang, Chenyu, Xue, Haoran, Jia, Hongwei, Hu, Jing, Wang, Dongyang, Jiang, Tianshu, Chan, C. T.
Electromagnetic wave propagation in three-dimensional space typically suffers omnidirectional scattering when encountering obstacles. In this study, we employed Chern vectors to construct a topological heterostructure, where large-volume non-reciproc
Externí odkaz:
http://arxiv.org/abs/2407.00440
Autor:
Qu, Tiantao, Wang, Mudi, Cheng, Xiaoyu, Cui, Xiaohan, Zhang, Ruo-Yang, Zhang, Zhao-Qing, Zhang, Lei, Chen, Jun, Chan, C. T.
Publikováno v:
Phys. Rev. Lett. 132, 223802 (2024)
We present the new concept of photonic alloy as a non-periodic topological material. By mixing non-magnetized and magnetized rods in a non-periodic 2D photonic crystal configuration, we realized photonic alloys in the microwave regime. Our experiment
Externí odkaz:
http://arxiv.org/abs/2406.05168
Layered van der Waals transition metal dichalcogenides (TMDCs), generally composed of three atomic X-M-X planes in each layer (M = transition metal, X = chalcogen), provide versatile platforms for exploring diverse quantum phenomena. In each MX2 laye
Externí odkaz:
http://arxiv.org/abs/2405.16750
Autor:
Park, Jagang, Lee, Kyungmin, Zhang, Ruo-Yang, Park, Hee-Chul, Ryu, Jung-Wan, Cho, Gil Young, Lee, Min Yeul, Zhang, Zhaoqing, Park, Namkyoo, Jeon, Wonju, Shin, Jonghwa, Chan, C. T., Min, Bumki
Over the last few decades, the prominent strategies for controlling spontaneous emission has been the use of resonant or space-periodic photonic structures. This approach, initially articulated by Purcell and later expanded upon by Yablonovitch in th
Externí odkaz:
http://arxiv.org/abs/2404.13287
The Chern number has been widely used to describe the topological properties of periodic structures in the momentum space. Here, we introduce a real-space spin Chern number for the optical near fields of finite-sized structures. This new spin Chern n
Externí odkaz:
http://arxiv.org/abs/2312.11771
Autor:
Zhang, Mo-Han, Gao, Fei, Lorentzen, Aleksander Bach, Ren, Ya-Ning, Zhang, Ruo-Han, Zhou, Xiao-Feng, Dong, Rui, Gao, Shi-Wu, Brandbyge, Mads, He, Lin
It has long been an ultimate goal to introduce chemical doping at the atomic level to precisely tune properties of materials. Two-dimensional materials have natural advantage because of its highly-exposed surface atoms, however, it is still a grand c
Externí odkaz:
http://arxiv.org/abs/2311.06515
Autor:
Fang, Hongjie, Fang, Hao-Shu, Wang, Yiming, Ren, Jieji, Chen, Jingjing, Zhang, Ruo, Wang, Weiming, Lu, Cewu
While humans can use parts of their arms other than the hands for manipulations like gathering and supporting, whether robots can effectively learn and perform the same type of operations remains relatively unexplored. As these manipulations require
Externí odkaz:
http://arxiv.org/abs/2309.14975