Results 1 to 10 of about 903 (183)

Electromagnetic reprogrammable coding-metasurface holograms [PDF]

Nature Communications, 2017
Realizing metasurfaces with reconfigurability, high efficiency, and control over phase and amplitude is a challenge. Here, Li et al. introduce a reprogrammable hologram based on a 1-bit coding metasurface, where the state of each unit cell of the coding ...
Lianlin Li, Tie Jun Cui, Wei Ji, Shuo Liu, Jun Ding, Xiang Wan, Yun Bo Li, Menghua Jiang, Cheng-Wei Qiu, Shuang Zhang   +9 more
doaj   +5 more sources

Hilbert-Coding Metasurface for Diverse Electromagnetic Controls [PDF]

Materials, 2022
Metamaterials, or metasurfaces, allow the flexible and efficient manipulation of electromagnetic (EM) wave. Although the passive coding metasurfaces have achieved a great deal of functionality, they also need a complex design process. In this paper, we propose Hilbert-coding metasurfaces for flexible and convenient EM regulation by arranging Hilbert ...
Cui Haoyang, , Ying Ruan
exaly   +4 more sources

Information entropy of coding metasurface [PDF]

Light: Science and Applications, 2016
Because of their exceptional capability to tailor the effective medium parameters, metamaterials have been widely used to control electromagnetic waves, which has led to the observation of many interesting phenomena, for example, negative refraction, invisibility cloaking, and anomalous reflections and transmissions.
Tie Jun Cui, Shuo Liu, Cui Tie-Jun
exaly   +5 more sources

Multitask bidirectional digital coding metasurface for independent controls of multiband and full-space electromagnetic waves [PDF]

Nanophotonics, 2022
Full-space metasurfaces demonstrate powerful abilities in manipulating electromagnetic (EM) waves, but most of them are usually single band. Here, a multiband bidirectional digital coding metasurface is proposed for multiple tasks, which can achieve ...
Wu Liang Wei, Ma Hui Feng, Gou Yue, Wu Rui Yuan, Wang Zheng Xing, Xiao Qiang, Cui Tie Jun   +6 more
doaj   +3 more sources

Holographic communication using programmable coding metasurface [PDF]

Nanophotonics
With rapid development of holography, metasurface-based holographic communication scheme shows great potential in development of adaptive electromagnetic function. However, conventional passive metasurfaces are severely limited by poor reconfigurability,
Zhang Fan, Wang Chaohui, Feng Weike, Liu Tong, Wang Zhengjie, Wang Yanzhao, Wang Mingzhao, Xu He-Xiu   +7 more
doaj   +4 more sources

Multifunctional movable-type coding metasurface enabling reconfigurable diffractive neural networks [PDF]

Light: Science & Applications
Optical computing holds significant promise across diverse applications due to its low latency, power efficiency, and multidimensional processing capabilities. However, current diffraction neural networks (DNNs) generally lack reconfigurability, limiting
Zhicai Yu, Xinyu Li, Ze Gu, Long Chen, Jianlin Su, Zixuan Cai, Xinyi Yu, Shilong Qin, Lei Zhang, Qian Ma, Jian Wei You, Tie Jun Cui   +11 more
doaj   +2 more sources

Two-Dimensional Beam Steering Based on Compact Programmable Coding Metasurface

Applied Sciences, 2022
A programmable coding metasurface provides unprecedented flexibility to manipulate electromagnetic waves dynamically. By controlling the peculiarity of subwavelength artificial atoms, devices with metasurfaces perform various functionalities.
Fei Yang, Fan Xu, Chenxi Liu, Xinyu Yang, Ziqiang Wang, Junwei Wu, Xiaojian Fu   +6 more
doaj   +3 more sources

Continuous manipulation of electromagnetic radiation based on ultrathin flexible frequency coding metasurface [PDF]

Scientific Reports
The physical characteristics of electromagnetic waves are combined with digital information in coding metasurfaces. Coding metasurfaces enable precise control of beams by flexibly designing coding sequences.
Min Jia, Chao Zhao, Zhouhao Tang, Ziliang Jin, Ningtao Zhang, Xiaofeng Han   +5 more
doaj   +2 more sources

Amplification and Manipulation of Nonlinear Electromagnetic Waves and Enhanced Nonreciprocity using Transmissive Space‐Time‐Coding Metasurface [PDF]

Advanced Science, 2022
A novel amplifier‐based transmissive space‐time‐coding metasurface is presented to realize strongly nonlinear controls of electromagnetic (EM) waves in both space and frequency domains, which can manipulate the propagation directions and adjust ...
Xin Wang, Jiaqi Han, Shuncheng Tian, Dexiao Xia, Long Li, Tie Jun Cui   +5 more
doaj   +2 more sources

Asynchronous Space‐Time‐Coding Digital Metasurface

Advanced Science, 2022
Recent progress in space‐time‐coding digital metasurface (STCM) manifests itself a powerful tool to engineer the properties of electromagnetic (EM) waves in both space and time domains, and greatly expands its capabilities from the physical manipulation ...
Si Ran Wang, Ming Zheng Chen, Jun Chen Ke, Qiang Cheng, Tie Jun Cui   +4 more
doaj   +3 more sources