Review
Computer Science, Information Systems
Majid Amiri, Farzad Tofigh, Negin Shariati, Justin Lipman, Mehran Abolhasan
Summary: Future IoT devices are expected to be fully ubiquitous and autonomous, requiring completely wireless operation and accurate sensing. Metamaterial perfect absorbers (MPAs) have the potential to improve efficiency and applications of IoT devices.
IEEE INTERNET OF THINGS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Zhengjie Guo, Xiaoyu Liu, Caixia Li, Jiefeng Li, Haotian Cai, Ming Fu, Dawei He, Yongsheng Wang
Summary: Broadband optical absorbers are essential for various applications such as solar energy harvesting, thermal emitters, and infrared detection. Metallic truncated nanocones demonstrated ultra-broadband absorption in the UV-visible-NIR spectral region, with an average absorptivity of 96.11% and continuous high absorptivity in a wide wavelength range. The interaction of different resonances in the truncated nanocones contributes to the high absorption performance, with potential for practical applications and fabrication feasibility.
Article
Engineering, Electrical & Electronic
Zhongyin Xiao, Qidi Xu, Chuan Li
Summary: A tunable, broadband metamaterial bandpass filter based on a three-dimensional structure was designed in this paper, which improves the out-of-band attenuation problem of traditional filters and has two transmission zeros with good out-of-band attenuation.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Physics, Applied
Zhonglei Shen, Shengnan Li, Yafei Xu, Wei Yin, Liuyang Zhang, Xuefeng Chen
Summary: Researchers have proposed a stereoscopic multilayered ultrabroadband THz metamaterial absorber utilizing 3D printing technique to overcome the fabrication complexities of traditional multistep photolithography processes. The feasibility of the proposed fabrication method for common out-of-plane THz narrowband absorbers has been validated, and the absorption capacities of the 3D printed absorbers are numerically and experimentally explained. These findings offer an efficient concept and fabrication technique for potential applications in emerging THz technologies, such as sensing, imaging, and wireless communications.
PHYSICAL REVIEW APPLIED
(2021)
Article
Chemistry, Physical
Chenxu Zhao, Huan Wang, Yanyan Bu, Hui Zou, Xiangfu Wang
Summary: This paper introduces the absorption mechanism and design directions of metamaterial perfect absorbers (MPAs), highlighting equivalent impedance matching, plasma resonance, and interference effect as the main absorption mechanisms. The design aspects of MPAs include multiband absorption, ultra-wideband and ultra-narrowband absorption, polarization and angle insensitive absorption, and dynamically controllable tunable absorption.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Bin Tang, Neigang Yang, Xianglian Song, Gui Jin, Jiangbin Su
Summary: This study proposes an anisotropic perfect metamaterial absorber in visible frequencies, utilizing a multi-layered alpha-MoO3 nanoribbon/dielectric structure stacked on a silver substrate. Electromagnetic simulations show that triple-band perfect absorption can be achieved for polarization along [100] and [001] in the direction of alpha-MoO3 when the absorber is composed of three alpha-MoO3 nanoribbon/dielectric layers.
Article
Engineering, Multidisciplinary
Liyun Cao, Yifan Zhu, Sheng Wan, Yi Zeng, Badreddine Assouar
Summary: This study presents a non-Hermitian loss-modulation beam and plate model based on complex wavenumber plane for designing lossy elastic metamaterials. The high-performance absorption of the metamaterial is achieved through a combination of dissipation-radiation balance and multiple reflections. The study provides a new approach for broadband low-frequency vibration suppression and offers an effective paradigm for wave engineering in non-Hermitian elastic wave systems.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2022)
Article
Optics
Xiaoshan Liu, Guolan Fu, Guiqiang Liu, Jinglei Wang, Qing Yi, Hong Yang, Wenyong Tan, Zhengqi Liu
Summary: A new resonant absorber was proposed and demonstrated by introducing a nano-slit into a photonic film, achieving ultra-sharp resonant absorption with high Q factors and enhanced absorption efficiency. Manipulation of operation wavelengths, optical field confinement effects, and photonic-plasmonic hybridization effects can be achieved by adjusting structural parameters and polarization states. These findings provide insights into high Q nano-optics devices.
Article
Materials Science, Multidisciplinary
Zian Li, Hui Xia, Yuefeng Zhao, Wentao Lei, Chenyang Zhao, Wenke Xie
Summary: This study designed a polarization-insensitive and absorption-tunable ultra-broadband terahertz metamaterial absorber. By analyzing the distribution of electric field and surface current, the mechanism of perfect absorption was explained. After optimizing the structural parameters, an average absorptance of 95.1% in the frequency range of 1.33 to 2.43 THz was achieved.
RESULTS IN PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Bahareh Khodadadi, Pejman Rezaei, Vahid Ghods, Majid Babaeinik
Summary: This article proposes and examines a polarization-insensitive broadband adjustable THz metamaterial absorber. The absorber is made up of a periodic array of patterned graphene elements, providing a wide bandwidth and high absorption rate. It exhibits polarization-independent characteristics and is suitable for various applications.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Chieh-Ting Lin, Ta-Jen Yen, Tsung-Yu Huang
Summary: This study presents a bifunctional sensor for simultaneous surface enhanced infrared absorption and refractive index sensing using a split-ring-resonator-based metamaterial perfect absorber. The sensor is able to detect polyvinyl chloride (PVC) with label-free and quantitative methods, achieving a detection limit of 0.5% in experiments, exceeding the current measurement limit of 10% through infrared absorption measurement.
Article
Engineering, Multidisciplinary
Jun Zhu, Changsong Wu
Summary: Most amino acid detection techniques currently have limitations in equipment operation procedures, detection periods, and accuracy, which do not meet the requirement of high-standard amino acid identification in the food industry. This study proposes a novel detection and identification method based on the different refractive indices of aqueous amino acid solutions. Experimental results show that this method can accurately identify amino acids, providing an important reference for further development of metamaterial sensors.
Article
Mechanics
Qiang Zhang, Fangyi Li, Dachang Zhu, Hongxin Wang
Summary: This paper presents a new design for a three-dimensional compression-torsion mechanical metamaterial based on the three-period minimal surface (TPMS) theory. This design concept shows superior torsion performance and a negative Poisson's ratio (NPR) effect compared to previous structures. The findings have significant implications for smart devices, aerospace engineering, and conservation engineering applications.
COMPOSITE STRUCTURES
(2023)
Article
Optics
Fulong Yang, Chenyang Zhang, Aihua Zhang, Xiaoqing Zhu, Huan Xu, Dayu Wang
Summary: This paper proposes a thermally tunable broadband metamaterial absorber based on ionic liquids at the microwave band, which exhibits distinct modulation characteristics in different frequency bands. Numerical simulations demonstrate that the absorption decreases with temperature in the low-frequency band and increases in the high-frequency band. The absorber shows good broadband absorption even without a metal substrate. Experimental results confirm the validity of the proposed structure. The simple design and wide frequency tuning range of the absorber suggest great potential applications in sensors, detection, and frequency-selective thermal emitters.
Article
Optics
Xudong Bai, Rui Yang
Summary: We demonstrate the perfect trapping of electromagnetic fields over multi-band frequencies through all-dielectric terahertz absorbers using water graphene cascade metamaterials. The water coating layer enhances high-order Fabry-Porot resonant absorbing modes, achieving more than 8 absorbing peaks with absorptions exceeding 99% below 3 THz. The integration with thermal controlled vanadium dioxide allows for easy resetting of the multiple perfect absorbing bands, and the reconfigurable characteristics of graphene enable dynamic tuning of absorbing frequencies.
Article
Chemistry, Multidisciplinary
Wei Ma, Yihao Xu, Bo Xiong, Lin Deng, Ru-Wen Peng, Mu Wang, Yongmin Liu
Summary: In this study, a new approach is proposed for the automatic design of multifunctional metasurfaces by embedding machine learning models in optimization loops. Unlike traditional methods, this end-to-end framework maximizes the design space and pushes the multifunctional design capacity to its limit, resulting in experimentally demonstrated metasurface focusing lenses and holograms. The data-driven scheme shows superior capability in photonics design and has the potential to accelerate the development of complex devices and systems for optical display, communication, and computing.
ADVANCED MATERIALS
(2022)
Article
Optics
Cheng-Yao Li, Chaowei Chen, Yu Liu, Jing Su, Dong-Xiang Qi, Jie He, Ren-Hao Fan, Qing Cai, Qingxuan Li, Ruwen Peng, Xian-Rong Huang, Mu Wang
Summary: This study experimentally demonstrates a multiple-polarization photodetector based on a hybrid organic-inorganic perovskite metasurface, which can simultaneously detect both linearly polarized and circularly polarized light. The results highlight the potential of perovskite metasurfaces for integrated photoelectric applications.
Article
Physics, Multidisciplinary
Ya-Jun Gao, Zheng Wang, Yue Jiang, Ru-Wen Peng, Zi-Yu Wang, Dong-Xiang Qi, Ren-Hao Fan, Wen-Jie Tang, Mu Wang
Summary: This article introduces a method for the transformation and distribution of photon pairs using dielectric metasurfaces, which efficiently achieves the distribution and transformation of entangled photon states. The experimental results demonstrate the potential for integrating quantum information networks.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Applied
Xiangdong Meng, Ruixuan Liu, Hongchen Chu, Ruwen Peng, Mu Wang, Yang Hao, Yun Lai
Summary: This study proposes a scheme of through-wall wireless communication using purposely designed passive metalenses. The metalenses can efficiently focus incoming waves to the other side of the wall, significantly enhancing wireless signal strength. By demonstrating its application in the 5GHz Wi-Fi environment, the study shows that the metalenses can reconnect broken network channels due to weak signal strength and significantly increase data transmission rates. This research provides an effective solution for wireless communication in future eco-friendly buildings.
PHYSICAL REVIEW APPLIED
(2022)
Article
Physics, Applied
Zheng Wang, Yue Jiang, Ya-Jun Gao, Ren-Hao Fan, Dong-Xiang Qi, Rui Zhong, Hu-Lin Zhang, Ru-Wen Peng, Mu Wang
Summary: This study introduces a solution for quantum state tomography of polarization-entangled states using nondiffractive silicon metasurfaces as a replacement for traditional optical elements. The experimental results show high transmission efficiency and fidelity, while significantly reducing the number of conventional optical components.
APPLIED PHYSICS LETTERS
(2022)
Article
Multidisciplinary Sciences
Bo Xiong, Yu Liu, Yihao Xu, Lin Deng, Chao-Wei Chen, Jia-Nan Wang, Ruwen Peng, Yun Lai, Yongmin Liu, Mu Wang
Summary: By introducing engineered noise to the precise solution of Jones matrix elements, we have surpassed the fundamental limit of polarization multiplexing capacity of metasurfaces. Through experiments, we have achieved up to 11 independent holographic images using a single metasurface illuminated by visible light with different polarizations, which is the highest reported capacity for polarization multiplexing. With the combination of position multiplexing, the metasurface is capable of generating 36 distinct images, forming a holographic keyboard pattern. This discovery opens up new possibilities for high-capacity optical display, information encryption, and data storage.
Article
Physics, Applied
Chao-Wei Chen, Le-Di Chen, Cheng-Yao Li, Xiang-Yu Wu, Qing Cai, Ren-Hao Fan, Dong-Xiang Qi, Ru-Wen Peng, Mu Wang
Summary: In this work, the strong coupling of localized surface plasmons (LSPs) and intermolecular vibration mode at THz was observed, resulting in Rabi splitting effect. The measured data confirmed that the splitting originated from the strong coupling between LSPs and molecular vibration mode. This research also demonstrated the potential of implementing molecular concentration sensing based on this strong coupling effect.
APPLIED PHYSICS LETTERS
(2023)
Article
Optics
Fei Chen, Ren-Hao Fan, Jun-Xuan Chen, Yu Liu, Ben-Qi Hou, Ru-Wen Peng, Mu Wang
Summary: Smith-Purcell radiation (SPR) is the far-field, strong, spike radiation generated by the interaction of the evanes-cent Coulomb field of the moving charged particles and the surrounding medium. In this study, tunable SPR is achieved by moving an electron beam parallel to a 2D metallic nanodisk array. By rotating the nanodisk array, the emission spectrum of SPR splits into two peaks with different wavelengths, which can be tuned by increasing the tuning angle.
Article
Nanoscience & Nanotechnology
Wenjie Ji, Jie Luo, Hongchen Chu, Xiaoxi Zhou, Xiangdong Meng, Ruwen Peng, Mu Wang, Yun Lai
Summary: By using epsilon-near-zero materials as claddings, the crosstalk between adjacent waveguides in photonic integrated circuits can be effectively prevented, leading to ultra-compact waveguide systems with extremely thin thickness.
