24 papers · ranked by Valyu relevance
Xin Wang, Jiaqi Han, Shuncheng Tian, Dexiao Xia + 2 more
'Tie Jun Cui'] Title: Abstract 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 enhancements of nonlinear harmonic waves and…
Jing Wang, Yan Chen, Benxian Wang, Xin Liu + 4 more
'Xiaojun Huang' 'Maciej Dems'] With the rapid development of 5G communication technology, there is an increasing demand for high-performance antennas and beam control technologies, making the development of novel metamaterial structures capable of precise electromagnetic wave manipulation a current research hotspot.…
Parsa Farzin, Amir Saman Nooramin, Mohammad Soleimani
In recent years, there has been notable advancement in programmable metasurfaces, primarily attributed to their cost-effectiveness and capacity to manipulate electromagnetic (EM) waves. Nevertheless, a significant limitation of numerous available metasurfaces is their capability to influence wavefronts only in…
Huixia Jiang, Lili Sheng, Yumei Luo, Liang Meng + 4 more
'Joseph N. Grima' 'Cheng Huang' 'Ting Xu'] Due to the growing scarcity of spectrum resources in the low-frequency band, the requirement of beam-reconfigurable antennas in the millimeter wave band is urgent. In this paper, a W-band graphene-based metasurface working in a broad bandwidth is proposed with reflective…
Min Jia, Chao Zhao, Hui Wang, Weiran Sun + 1 more
Title: Summary The development of coding metasurface opens an important development direction for beam modulator components. However, the lack of dynamic tunability is a major obstacle to the development and practicality of terahertz coding metasurface. In this work, we design and implement a wireless optically…
Cuizhen Sun, Junfei Gao, Huanhuan Gao, Xiongwei Ma + 2 more
'Changho Lee'] The manipulation of electromagnetic waves using metasurfaces is important in areas such as stealth and communication. In this paper, we reported on the use of an element-based polarizer for the first step, which enables the incident electromagnetic waves to integrate into the cross-polarized waves with a…
Bin Zheng, Xin Rao, Yuyu Shan, Chuandong Yu + 4 more
'Jonathan B. Hopkins' 'Robert M. Panas'] Recently, the coding metasurface has gained significant attention due to its exceptional potential in controlling electromagnetic (EM) waves with the rapid development of wireless communication systems. Meanwhile, graphene shows tremendous promise for the implementation of…
Hamidreza Taghvaee, Mohsen Khalily, Gabriele Gradoni, Rahim Tafazolli
with Reconfigurable Metasurfaces Authors: ['Hamidreza Taghvaee' 'Mohsen Khalily' 'Gabriele Gradoni' 'Rahim Tafazolli'] Abstract—Metasurfaces, the two-dimensional counterparts of metamaterials, represent cutting-edge technology in electromagnetic (EM) engineering. Comprising thin planar subwavelength structures that…
Parsa Farzin, Amir Saman Nooramin, Mohammad Soleimani
—In recent years, there has been notable advancement in programmable metasurfaces, primarily attributed to their costeffectiveness and capacity to manipulate electromagnetic (EM) waves. Nevertheless, a significant limitation of numerous available metasurfaces is their capability to influence wavefronts only in…
Jun Wei Zhang, Zhen Jie Qi, Li Jie Wu, Qun Yan Zhou + 12 more
'Wan Wan Cao' 'Xiao Ge' 'Cheng Long Gao' 'Xinxin Gao' 'Si Ran Wang' 'Zheng Xing Wang' 'Li Fang Yao' 'Jun Wei Wu' 'Jia Nan Zhang' 'Tie Jun Cui' 'Qiang Cheng'] Title: ABSTRACT The evolution of programmable metasurfaces has yielded many exciting electromagnetic (EM) phenomena and applications in both communities of…
J. Zhang, Zhen Qi, Li Jie Wu, Wan Wan Cao + 13 more
wireless communications Authors: ['J. Zhang' 'Zhen Qi' 'Li Jie Wu' 'Wan Wan Cao' 'Xinxin Gao' 'Zhentao Fu' 'Jingyu Chen' 'Jie Ming Lv' 'Zheng Xing Wang' 'Si Ran Wang' 'Jun Wu' 'Zhen Zhang' 'Jianan Zhang' 'Huidong Li' 'Jun Yan Dai' 'Qiang Cheng' 'Tie Jun Cui'] Jun Wei Zhang1,2,† , Zhen Jie Qi1,2,† , Li Jie Wu1,2 , Wan…
Parsa Farzin, Kasra Rouhi, Seyed Ehsan Hosseininejad
Switchable Metasurface Authors: ['Parsa Farzin' 'Kasra Rouhi' 'Seyed Ehsan Hosseininejad'] Programmable metasurfaces have recently attracted considerable interest for their versatile applications in areas such as beam steering, holography, and wireless communications, utilizing either phase or amplitude modulation.…
Xudong Bai, Longpan Wang, Yuhua Chen, Xilong Lu + 4 more
for Low Sidelobe Beamforming Authors: ['Xudong Bai' 'Longpan Wang' 'Yuhua Chen' 'Xilong Lu' 'Fuli Zhang' 'Jingfeng Chen' 'Wen Chen' 'He‐Xiu Xu'] Abstract—Programmable metasurfaces promise a great potential to construct low-cost phased array systems due to the capability of elaborate modulation over electromagnetic (EM)…
Parsa Farzin, Mohammad Javad Hajiahmadi, Mohammad Soleimani
—Wave-based cryptography, at the vanguard of advancing technologies in advanced information science, is essential for establishing a diverse array of secure cryptographic platforms. The realization of these platforms hinges on the intelligent application of multiplexing techniques, seamlessly combined with appropriate…
Yoshiaki Nishijima, Naoki To, Armandas Balcytis, Sauliur Juodkazis
Detailed spectral analysis of radiation absorption and scattering behaviors of metasurfaces was carried out via finite-difference time-domain (FDTD) photonic simulations. It revealed that, for typical metal-insulator-metal (MIM) nanodisc metasurfaces, absorbance and scattering cross-sections exhibit a ratio of…
Anna Archetti, Matteo Bruzzone, Giulia Tagliabue, Marco dal Maschio
Bessel Beams (BBs) and BB lattices are structured-light excitation profiles frequently applied in material processing, nonlinear spectroscopy and in many fluorescence microscopy methods such as Light Sheet Microscopy (LSM). In LSM, BBs and BB-lattices offer wider excitation profiles, higher acquisition rate, enhanced…
Cheng Zhang, Susobhan Choudhury, Kerstin Jansen, Johannes Balkenhol + 1 more
High-quality cellular imaging, especially in live cells, remains constrained by the trade-off among signal-to-noise ratio, phototoxicity, and instrumentation complexity. Here, we report a scalable plasmonic metasurface that generates a spatially ordered array of fluorescence-enhancing near-field hotspots and enables…
Authors not listed
Conducting polymers (CPs) have been a versatile and effective material for dynamically controlling optical properties with applications ranging from electrochromic windows and displays to variable infrared (IR) emittance devices and terahertz modulators. In particular, its biocompatibility, flexibility, reversibility…
Authors not listed
We demonstrate the numerical optimization and design of thermal emission metasurfaces that selectively radiate mid-infrared (mid-IR) circularly-polarized light. The proposed three-dimensional chiral structure, formed by the multilayer stacking of antenna elements, inherently exhibits circular polarization selectivity…
Yoshiaki Nishijima, Shunya Kimura, Yu Takeshima, Saulius Jodkazis
Control of light absorption and transmission by metal-insulator-metal (MIM) metasurfaces are important for applications in optical windows. In this study we show realization of photo-thermal energy conversion for the radiative cooling. By controlling absorption and transparency of MIM metasurfaces with thin metal…
Steven H. Huang, Po-Ting Shen, Aditya Mahalanabish, Giovanni Sartorello + 3 more
Mid-Infrared (MIR) chemical imaging provides rich chemical information of biological samples in a label-free and non-destructive manner. Yet, its adoption to live-cell analysis is limited by the strong attenuation of MIR light in water, often necessitating cell culture geometries that are incompatible with the…
Jacob Waitkus, JaeWoo Park, Theodore Ndukaife, Sui Yang + 1 more
This study demonstrates a silicon nanopillar metasurface coupled with localized surface plasmon resonance (LSPR) mediated by the presence of cephalexin antibiotics in solution for biosensing applications. A facile fabrication process was developed to create the metasurface on silicon wafers with a unique resonance…
Authors not listed
In the field of mid-infrared (m-IR) applications, there is a need to control thermal radiation from metal-insulator-metal (MIM) metasurfaces without any optical components. Here, we introduce the concept of metalens for the MIM metasurfaces. The finite difference time domain (FDTD) simulation was used to design the…
Yoshiaki Nishijima, Saulius Juodkazis
Coupling between light and molecular vibrational modes is dependent on efficiency of molecular absorption. Here we demonstrate how to control coupling between molecular mid-infrared absorption/emission at chemical fingerprinting spectral window and metasurface using SiO2 as the absorber/emitetr and CaF2 as a spacer to…