Lei Zhang, Xiao Qing Chen, Shuo Liu, Qian Zhang et al.
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. However, current configurations are only space-encoded, and do not exploit the temporal dimensi...
Lianlin Li, Tie Jun Cui, Wei Ji, Shuo Liu et al.
Metasurfaces have enabled a plethora of emerging functions within an ultrathin dimension, paving way towards flat and highly integrated photonic devices. Despite the rapid progress in this area, simultaneous realization of reconfigurability, high efficiency, and full control over the phase and ampli...
Cunhua Pan, Hong Ren, Kezhi Wang, Jonas Florentin Kolb et al.
Reconfigurable intelligent surfaces (RISs) or intelligent reflecting surfaces (IRSs) are regarded as one of the most promising and revolutionizing techniques for enhancing the spectrum and/ or energy efficiency of wireless systems. These devices are capable of reconfiguring the wireless propagation ...
Hui Feng, Xiaopeng Shen, Qiang Cheng, Wei Jiang et al.
The conversion from spatial propagating waves to surface plasmon polaritons (SPPs) has been well studied, and shown to be very efficient by using gradient-index metasurfaces. However, feeding energies into and extracting signals from functional plasmonic devices or circuits through transmission line...
Lianlin Li, Hengxin Ruan, Che Liu, Ying Li et al.
Conventional microwave imagers usually require either time-consuming data acquisition, or complicated reconstruction algorithms for data post-processing, making them largely ineffective for complex in-situ sensing and monitoring. Here, we experimentally report a real-time digital-metasurface imager ...
Fushuo Wu, Peiying Hu, Feiyue Hu, Zhihua Tian et al.
Abstract Two-dimensional transition metal carbides and nitrides (MXene) have emerged as promising candidates for microwave absorption (MA) materials. However, they also have some drawbacks, such as poor impedance matching, high self-stacking tendency, and high density. To tackle these challenges, MX...
Xiang Wan, Mei Qing Qi, Tian Yi Chen, Tie Jun Cui
Digital phase shifters have been applied in traditional phased array antennas to realize beam steering. However, the phase shifter deals with the phase of the induced current; hence, it has to be in the path of each element of the antenna array, making the phased array antennas very expensive. Metam...
Xuan Zhang, Yiyi Xu, Cristian Valenzuela, Xinfang Zhang et al.
Chiral nanomaterials with intrinsic chirality or spatial asymmetry at the nanoscale are currently in the limelight of both fundamental research and diverse important technological applications due to their unprecedented physicochemical characteristics such as intense light-matter interactions, enhan...
Tie Jun Cui, Lianlin Li, Shuo Liu, Qian Ma et al.
Metamaterials have great capabilities and flexibilities in controlling electromagnetic (EM) waves because their subwavelength meta-atoms can be designed and tailored in desired ways. However, once the structure-only metamaterials (i.e., passive metamaterials) are fabricated, their functions will be ...
Bing Zhou, Qingtao Li, Penghui Xu, Yuezhan Feng et al.
Flexible cellulose-based conductive films reveal high potential in electromagnetic interference (EMI) shielding and thermal management applications. However, the high contact electrical/thermal resistance in these films is still a challenge to face. In this work, an asymmetric sandwich structural fi...
Hanting Zhao, Ya Shuang, Menglin Wei, Tie Jun Cui et al.
Conventional wireless communication architecture, a backbone of our modern society, relies on actively generated carrier signals to transfer information, leading to important challenges including limited spectral resources and energy consumption. Backscatter communication systems, on the other hand,...
Jiao Liu, Zhen‐Peng Song, Luyao Sun, Bingxiang Li et al.
Abstract Circularly polarized luminescent (CPL) materials have received significant attention in the field of fundamental science recently. These materials offer substantial advancement of technological applications, such as optical data storage, displays, and quantum communication. Various strategi...
Shobhit K. Patel, Jaymit Surve, Vijay Katkar, Juveriya Parmar et al.
We have investigated graphene-based three various refractive index sensors (split ring resonator (SRR), split ring resonator with thin wire (SRRTW), and thin wire (TW) refractive index sensors) for the encoding and sensing-based applications. The sensors are designed to detect the presence of hemogl...
Geng‐Bo Wu, Jun Yan Dai, Kam Man Shum, Ka Fai Chan et al.
Metasurfaces have promising potential to revolutionize a variety of photonic and electronic device technologies. However, metasurfaces that can simultaneously and independently control all electromagnetics (EM) waves' properties, including amplitude, phase, frequency, polarization, and momentum, wit...
Meng Qiu, Lei Zhang, Zhixiang Tang, Wei Jin et al.
Abstract Chirality is a universal geometric property in both micro‐ and macroworlds. Recently, optical chiral effects have drawn increased attention due to their great potential in fundamental studies and practical applications. Significantly, the optical chiral response of artificial structures can...