Results 71 to 80 of about 65,305 (312)

Functionality multiplexing in high-efficiency metasurfaces based on coherent wave interferences

Opto-Electronic Advances
Multiplexing multiple yet distinct functionalities in one single device is highly desired for modern integration optics, but conventional devices are usually of bulky sizes and/or low efficiencies.
Yuejiao Zhou, Tong Liu, Changhong Dai, Dongyi Wang, Lei Zhou   +4 more
doaj   +1 more source

Continuous-phase-transformation acoustic metasurface

Results in Physics, 2021
Acoustic metasurfaces are artificial structures, one of whose functions is to achieve plane wave focusing due to the phase gradient transformation of specific structural units. However, previous periodic acoustic metasurfaces for plane wave focusing have
Junfeng Chen, Jianlan Xie, Jianjun Liu
doaj  

Abnormal beam steering with kirigami reconfigurable metasurfaces

Nature Communications
Dynamically controlling electromagnetic waves at will is highly desired in many applications, but most previously realized mechanically reconfigurable metasurfaces are of restricted wave-control capabilities due to the limited tuning ranges of structural
Guobang Jiang, Yingying Wang, Ziyu Zhang, Weikang Pan, Yizhen Chen, Yang Wang, Xiangzhong Chen, Enming Song, Gaoshan Huang, Qiong He, Shulin Sun, Jizhai Cui, Lei Zhou, Yongfeng Mei   +13 more
doaj   +1 more source

Harmonic information transitions of spatiotemporal metasurfaces

Light: Science & Applications, 2020
Metamaterials: Heightened harmonics from moving metasurfaces The generation of light harmonics by rapidly-changing metasurfaces could provide exciting new methods of information processing.
Haotian Wu, Xin Xin Gao, Lei Zhang, Guo Dong Bai, Qiang Cheng, Lianlin Li, Tie Jun Cui   +6 more
doaj   +1 more source

Design for Highly Efficient Nanometagratings and Theory of Extreme Subdiffraction Photon Control

Advanced Photonics Research, 2022
Conventional planar metasurfaces are always much larger than the wavelength level. Previous studies on extreme wavefront control based on superoscillation suggest a fundamental tradeoff between the size and efficiency of diffraction‐based metasurfaces ...
Yan-ming Gao, Xiang-yang Yu
doaj   +1 more source

Space-time-coding digital metasurfaces

Nature Communications, 2018
The recently proposed digital coding metasurfaces make it possible to control electromagnetic (EM) waves in real time, and allow the implementation of many different functionalities in a programmable way.
Lei Zhang, X. Q. Chen, Shuo Liu, Qian Zhang, Jie Zhao, J. Dai, G. Bai, X. Wan, Q. Cheng, G. Castaldi, V. Galdi, T. Cui   +11 more
semanticscholar   +1 more source

Imaging-based spectrometer-less optofluidic biosensors based on dielectric metasurfaces for detecting extracellular vesicles

Nature Communications, 2021
Biosensors are indispensable tools for public, global, and personalized healthcare as they provide tests that can be used from early disease detection and treatment monitoring to preventing pandemics.
Yasaman Jahani, Eduardo Arvelo, F. Yesilkoy, K. Koshelev, C. Cianciaruso, Michele De Palma, Y. Kivshar, H. Altug   +7 more
semanticscholar   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Scalable and High-Throughput Top-Down Manufacturing of Optical Metasurfaces

Sensors, 2020
Metasurfaces have shown promising potential to miniaturize existing bulk optical components thanks to their extraordinary optical properties and ultra-thin, small, and lightweight footprints.
Taejun Lee, Chihun Lee, Dong Kyo Oh, Trevon Badloe, Jong G. Ok, Junsuk Rho   +5 more
doaj   +1 more source

Broadband Achromatic Metasurfaces for Longwave Infrared Applications

Nanomaterials, 2021
Longwave infrared (LWIR) optics are essential for several technologies, such as thermal imaging and wireless communication, but their development is hindered by their bulk and high fabrication costs.
Naitao Song, Nianxi Xu, Dongzhi Shan, Yuanhang Zhao, Jinsong Gao, Yang Tang, Qiao Sun, Xin Chen, Yansong Wang, Xiaoguo Feng   +9 more
doaj   +1 more source