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Thematische Bibliographien / METAMATERIAL ABSORBER / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „METAMATERIAL ABSORBER“

Autor: Grafiati

Veröffentlicht am 26. Oktober 2023

Zuletzt aktualisiert am 25. Juli 2025

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1

ZHOU, Zhiling, Sibo HUANG, Qian CHENG, Xu WANG, Jie ZHU, and Yong LI. "Broadband acoustic metamaterial absorber." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 10 (2024): 1316–22. http://dx.doi.org/10.3397/in_2024_2881.

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Constrained by the causality nature, it is a challenge to achieve low-frequency broadband efficient absorption via passive materials. By coupling local resonances as many as possible, broadband metamaterial absorbers can be realized. In this scenario, the coupling effect is crucial for improving the absorption efficiency. Here, we demonstrate a kind of acoustic metamaterial absorber capable of high-efficiency broadband absorption by optimizing the non-local coupling effect. Cascade neck-embedded Helmholtz resonator is designed as the subunit of the metamaterial absorber. By coupling 36 subunit

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Tran, Van Huynh, Thanh Tung Nguyen, Xuan Khuyen Bui, Dinh Lam Vu, Son Tung Bui, and Thi Hong Hiep Le. "Experimental Verification of a TH\(\text{z}\) Multi-band Metamaterial Absorber." Communications in Physics 30, no. 4 (2020): 311. http://dx.doi.org/10.15625/0868-3166/30/4/15081.

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Multi-band metamaterial absorbers have been of great interest owing to their potentials for a wide range of communicating, sensing, imaging, and energy harvesting applications. In this work, we experimentally investigate a four-band metamaterial absorber operating at THz frequencies. The metamaterials are fabricated using the maskless UV photolithography and e-beam evaporation techniques. The absorption spectra of the proposed absorber are measured using the micro-Fourier transformed infrared spectroscopy. It was demonstrated that multi-band absorption behavior originates from different indivi

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Li, Xin, Qiushi Li, Liang Wu, Zongcheng Xu, and Jianquan Yao. "Focusing on the Development and Current Status of Metamaterial Absorber by Bibliometric Analysis." Materials 16, no. 6 (2023): 2286. http://dx.doi.org/10.3390/ma16062286.

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In this paper, a total of 4770 effective documents about metamaterial absorbers were retrieved from the Web of Science Core Collection database. We scientifically analyzed the co-occurrence network of co-citation analysis by author, country/region, institutional, document, keywords co-occurrence, and the timeline of the clusters in the field of metamaterial absorber. Landy N. I.’s, with his cooperator et al., first experiment demonstrated a perfect metamaterial absorber microwave to absorb all incidents of radiation. From then on, a single-band absorber, dual-band absorber, triple-band absorbe

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Neil, Thomas R., Zhiyuan Shen, Daniel Robert, Bruce W. Drinkwater, and Marc W. Holderied. "Moth wings are acoustic metamaterials." Proceedings of the National Academy of Sciences 117, no. 49 (2020): 31134–41. http://dx.doi.org/10.1073/pnas.2014531117.

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Metamaterials assemble multiple subwavelength elements to create structures with extraordinary physical properties (1–4). Optical metamaterials are rare in nature and no natural acoustic metamaterials are known. Here, we reveal that the intricate scale layer on moth wings forms a metamaterial ultrasound absorber (peak absorption = 72% of sound intensity at 78 kHz) that is 111 times thinner than the longest absorbed wavelength. Individual scales act as resonant (5) unit cells that are linked via a shared wing membrane to form this metamaterial, and collectively they generate hard-to-attain broa

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Wang Yurang, Qu Weiwei, Li Guilin, Deng Hu, and Shang Liping. "An optimization method for terahertz metamaterial absorber based on MOPSO." Acta Physica Sinica 74, no. 5 (2025): 0. https://doi.org/10.7498/aps.74.20241684.

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Metamaterials can freely control terahertz waves to obtain the desired electromagnetic characteristics by designing the geometry and direction of the unit structure, which is widely used in sensing, communication and stealth technology in radar. The traditional design of terahertz metamaterial absorber usually requires continuous structural adjustment and a large number of simulations to meet the expected requirements. The process is heavily dependent on the experience of researchers, and the physical modeling and simulation solution process is time-consuming and inefficient, which has greatly

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Yang, Guishuang, Fengping Yan, Xuemei Du, et al. "Tunable broadband terahertz metamaterial absorber based on vanadium dioxide." AIP Advances 12, no. 4 (2022): 045219. http://dx.doi.org/10.1063/5.0082295.

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The special electromagnetic properties of metamaterials have contributed to the development of terahertz technology, and terahertz broadband absorbers for various applications have been investigated. The design of metamaterial absorbers with tunability is in a particularly attractive position. In this work, a tunable broadband terahertz metamaterial absorber is proposed based on the phase transition material vanadium dioxide (VO2). The simulation results show that an excellent absorption bandwidth reaches 3.78 THz with the absorptivity over 90% under normal incidence. The absorptivity of the p

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Gu, Leilei, Hongzhan Liu, Zhongchao Wei, Ruihuan Wu, and Jianping Guo. "Optimized Design of Plasma Metamaterial Absorber Based on Machine Learning." Photonics 10, no. 8 (2023): 874. http://dx.doi.org/10.3390/photonics10080874.

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Metamaterial absorbers have become a popular research direction due to their broad application prospects, such as in radar, infrared imaging, and solar cell fields. Usually, nanostructured metamaterials are associated with a large number of geometric parameters, and traditional simulation designs are time consuming. In this paper, we propose a framework for designing plasma metamaterial absorbers in both a forward prediction and inverse design composed of a primary prediction network (PPN) and an auxiliary prediction network (APN). The framework can build the relationship between the geometric

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Li, Xiu, Chang Jun Hu, and Yang Wang. "Design of Metamaterial Absorber with Ultra-broadband and High Absorption." Journal of Physics: Conference Series 2557, no. 1 (2023): 012077. http://dx.doi.org/10.1088/1742-6596/2557/1/012077.

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Abstract Metamaterial absorbers with perfect absorption properties are essential in various fields. A multilayer metamaterial disc absorber has been designed and analyzed using a finite-difference time-domain method. In the wavelength range from 300 nm to 3000 nm, this metamaterial absorber absorbs more than 90%. The metamaterial absorber is polarisation-insensitive due to its symmetric structure. On the other hand, the designed absorber still provides a high absorbance (>80%) at an incidence angle of 60°. Surface plasmon resonance (SPR), cavity resonance, local surface plasmon resonance (L

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Liu, Xiajun, Feng Xia, Mei Wang, Jian Liang, and Maojin Yun. "Working Mechanism and Progress of Electromagnetic Metamaterial Perfect Absorber." Photonics 10, no. 2 (2023): 205. http://dx.doi.org/10.3390/photonics10020205.

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Electromagnetic metamaterials are artificial subwavelength composites with periodic structures, which can interact strongly with the incident light to achieve effective control of the light field. Metamaterial absorbers can achieve nearly 100% perfect absorption of incident light at a specific frequency, so they are widely used in sensors, optical switches, communication, and other fields. Based on the development history of metamaterials, this paper discusses the research background and significance of metamaterial perfect absorbers. Some perfect absorption mechanisms, such as impedance match

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Wang, Xingzhong, Shiteng Rui, Shaokun Yang, Weiquan Zhang, and Fuyin Ma. "A low-frequency pure metal metamaterial absorber with continuously tunable stiffness." Applied Mathematics and Mechanics 45, no. 7 (2024): 1209–24. http://dx.doi.org/10.1007/s10483-024-3158-7.

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AbstractTo address the incompatibility between high environmental adaptability and deep subwavelength characteristics in conventional local resonance metamaterials, and overcome the deficiencies in the stability of existing active control techniques for band gaps, this paper proposes a design method of pure metal vibration damping metamaterial with continuously tunable stiffness for wideband elastic wave absorption. We design a dual-helix narrow-slit pure metal metamaterial unit, which possesses the triple advantage of high spatial compactness, low stiffness characteristics, and high structura

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Ge, Tingting, Zhijin Li, Wei Song, and Xinqing Sheng. "Design and Simulation of Photo-excited Tunable Perfect Absorber Based on Semiconductor-incorporated Metamaterial Structure." Journal of Physics: Conference Series 2219, no. 1 (2022): 012030. http://dx.doi.org/10.1088/1742-6596/2219/1/012030.

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Abstract The perfect metamaterial absorber with sandwich structure is capable to realize nearly 100% microwave absorption. We designed and simulated a photo-excited tunable perfect absorber based on semiconductor-incorporated metamaterials using HFSS (Ansoft). This absorber composes of semiconductor Ge in designed pattern in the unit cell. Under different pump power of the incident laser light, the conductivity of Ge on the metamaterial varies. In this way, the absorption frequency of the absorber can be tuned. Simulation results showed that, under the two pump light conditions, the absorber i

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Peng, Mengyue, Faxiang Qin, Liping Zhou, Huijie Wei, Zihao Zhu, and Xiaopeng Shen. "Material–structure integrated design for ultra-broadband all-dielectric metamaterial absorber." Journal of Physics: Condensed Matter 34, no. 11 (2021): 115701. http://dx.doi.org/10.1088/1361-648x/ac431e.

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Abstract Material and structure are the essential elements of all-dielectric metamaterials. Structure design for specific dielectric materials has been studied while the contribution of material and synergistic effect of material and structure have been overlooked in the past years. Herein, we propose a material–structure integrated design (MSID) methodology for all-dielectric metamaterials, increasing the degree of freedom in the metamaterial design, to comprehensively optimize microwave absorption performance and further investigate the contribution of material and structure to absorption. A

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Ali, Hema Omer, and Asaad M. Al-Hindawi. "A Ultra-broadband Thin Metamaterial Absorber for Ku and K Bands Applications." Journal of Engineering 27, no. 5 (2021): 1–16. http://dx.doi.org/10.31026/j.eng.2021.05.01.

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In this paper, a design of the broadband thin metamaterial absorber (MMA) is presented. Compared with the previously reported metamaterial absorbers, the proposed structure provides a wide bandwidth with a compatible overall size. The designed absorber consists of a combination of octagon disk and split octagon resonator to provide a wide bandwidth over the Ku and K bands' frequency range. Cheap FR-4 material is chosen to be a substate of the proposed absorber with 1.6 thicknesses and 6.5×6.5 overall unit cell size. CST Studio Suite was used for the simulation of the proposed absorber. The pro

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Xu, Zongcheng, Yujie Li, Bin Han, et al. "All-Silicon Polarization-Insensitive Metamaterial Absorber in the Terahertz Range." Materials 17, no. 9 (2024): 2098. http://dx.doi.org/10.3390/ma17092098.

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All-silicon terahertz absorbers have attracted considerable interest. We present a design and numerical study of an all-silicon polarization-insensitive terahertz metamaterial absorber. The meta-atoms of the metamaterial absorber are square silicon rings which can be viewed as gratings. By properly optimizing the structure of the meta-atom, we achieve a broadband absorptivity that is above 90% ranging from 0.77 THz to 2.53 THz, with a relative bandwidth of 106.7%. Impedance matching reduces the reflection of the terahertz waves and the (0, ±1)-order diffraction induce the strong absorption. Th

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Abdul Khadar, Shaik, and K. Sitarama Sastry. "Metamaterial Absorber: A Review." International Journal of Science and Research (IJSR) 12, no. 9 (2023): 1729–35. http://dx.doi.org/10.21275/sr23921225933.

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Murakami, Kenki, and Wakana Kubo. "Optimizing broadband metamaterial absorber using deep reinforcement learning." Applied Physics Express 16, no. 8 (2023): 082007. http://dx.doi.org/10.35848/1882-0786/acf094.

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Abstract Optimization of the geometry of broadband metamaterial absorbers is crucial for improving the performance of optoelectronic devices. However, a large number of geometric parameters should be considered to achieve broad absorption, which is time-consuming. Herein, we propose a rapid and simple method for optimizing metamaterial absorbers dedicated to thermal radiation absorption using deep reinforcement learning. Deep reinforcement learning generated an ideal geometry for a broadband metamaterial absorber after 4 h, demonstrating the effectiveness of this technique for the rapid and ef

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Guo, Tian-Long, Fangfang Li, and Matthieu Roussey. "Dielectric Cavity-Insulator-Metal (DCIM) Metamaterial Absorber in Visible Range." Nanomaterials 13, no. 8 (2023): 1401. http://dx.doi.org/10.3390/nano13081401.

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For many years, metamaterial absorbers have received much attention in a wide range of application fields. There is an increasing need to search for new design approaches that fulfill more and more complex tasks. According to the specific application requirements, design strategy can vary from structure configurations to material selections. A new combination of a dielectric cavity array, dielectric spacer, and gold reflector as a metamaterial absorber is proposed and theoretically studied in this work. The complexity of the dielectric cavities leads to a more flexible optical response than tr

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Li, Guilin, Yan Huang, Yurong Wang, Weiwei Qu, Hu Deng, and Liping Shang. "Efficient Design of a Terahertz Metamaterial Dual-Band Absorber Using Multi-Objective Firefly Algorithm Based on a Multi-Cooperative Strategy." Photonics 12, no. 7 (2025): 637. https://doi.org/10.3390/photonics12070637.

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Terahertz metamaterial dual-band absorbers are used for multi-target detection and high-sensitivity sensing in complex environments by enhancing information that reflects differences in the measured substances. Traditional design processes are complex and time-consuming. Machine learning-based methods, such as neural networks and deep learning, require a large number of simulations to gather training samples. Existing design methods based on single-objective optimization often result in uneven multi-objective optimization, which restricts practical applications. In this study, we developed a m

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Zhou, Mengyu, Yubin Chen, Yuguang He, and Cheng Yang. "Ultra-Thin and Broadband P-Band Metamaterial Absorber Based on Carbonyl Iron Powder Composites." Materials 17, no. 5 (2024): 1157. http://dx.doi.org/10.3390/ma17051157.

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The field of P-band (0.3–1 GHz) absorption has witnessed rapid development in metamaterial absorbers due to their exceptional designability and the absence of restrictions imposed by the one-fourth wavelength rule. In this study, we combined carbonyl iron powder (CIP) composites with a periodic structure composed of metal capacitive patterns and employed a genetic algorithm (GA) to optimize the electromagnetic parameters of the CIP substrate. By selecting the appropriate shape and material for the units of pattern based on transmission line theory, as well as regulating relevant structural par

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Xu, Tao, Yingting Yi, Qianju Song, et al. "Design of a Far-Infrared Broadband Metamaterial Absorber with High Absorption and Ultra-Broadband." Coatings 14, no. 7 (2024): 799. http://dx.doi.org/10.3390/coatings14070799.

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We designed a metamaterial far-infrared absorber based on an MDM (metal–dielectric–metal) structure. We made a hollow crossed Ti microstructure at the top of the absorber. It is known that the coupling effect of equipartitional exciton resonance and intrinsic absorption at the surface of the depleting material has a strong influence on the absorber. Based on this, we investigated the absorption characteristics of the absorber using the Finite Difference in Time Domain (FDTD) theory. The results show that the absorber absorbed more than 90% of the light within a bandwidth of 12.01 μm. The absor

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Le Van Long, Bui Son Tung, Bui Xuan Khuyen, Bui Huu Nguyen, and Vu Dinh Lam. "Electrically reconfigurable metamaterial absorber operating in C band." Journal of Military Science and Technology 91 (November 25, 2023): 63–72. http://dx.doi.org/10.54939/1859-1043.j.mst.91.2023.63-72.

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Reconfigurable metamaterial absorbers have garnered significant attention due to their ability to actively manipulate absorption characteristics without modifying the underlying geometrical structure. This study proposes a straightforward approach for the creation of electrically reconfigurable metamaterial absorbers through the integration of varactor diodes. The presented work encompasses two distinct types of absorbers: single-band and dual-band metamaterial absorbers. By leveraging an external voltage, effective control over absorption frequencies in the C-band is achieved. The underlying

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Yang, Rundong, Yun Liu, and Xiangfu Wang. "Metamaterial Broadband Absorber Induced by Synergistic Regulation of Temperature and Electric Field and Its Optical Switching Application." Sensors 24, no. 16 (2024): 5430. http://dx.doi.org/10.3390/s24165430.

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Nowadays, metamaterial absorbers still suffer from limited bandwidth, poor bandwidth scalability, and insufficient modulation depth. In order to solve this series of problems, we propose a metamaterial absorber based on graphene, VO2, gallium silver sulfide, and gold-silver alloy composites with dual-control modulation of temperature and electric field. Then we further investigate the optical switching performance of this absorber in this work. Our proposed metamaterial absorber has the advantages of broad absorption bandwidth, sufficient modulation depth, and good bandwidth scalability all to

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Shen, Zhe, and Junfan Ni. "Multi-Resonant Full-Solar-Spectrum Perfect Metamaterial Absorber." Nanomaterials 14, no. 23 (2024): 1959. https://doi.org/10.3390/nano14231959.

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Currently, perfect absorption properties of metamaterials have attracted widespread interest in the area of solar energy. Ultra-broadband absorption, incidence angle insensitivity, and polarization independence are key performance indicators in the design of the absorbers. In this work, we proposed a metamaterial absorber based on the absorption mechanism with multiple resonances, including propagation surface plasmon resonance (PSPR), localized surface plasmon resonance (LSPR), electric dipole resonance (EDR), and magnetic dipole resonance (MDR). The absorber, consisting of composite nanocyli

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Jiang, Haoqing, Yue Wang, Zijian Cui, Xiaoju Zhang, Yongqiang Zhu, and Kuang Zhang. "Vanadium Dioxide-Based Terahertz Metamaterial Devices Switchable between Transmission and Absorption." Micromachines 13, no. 5 (2022): 715. http://dx.doi.org/10.3390/mi13050715.

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Terahertz metamaterial plays a significant role in the development of imaging, sensing, and communications. The function of conventional terahertz metamaterials was fixed after fabrication. They can only achieve a single function and do not have adjustable characteristics, which greatly limits the scalability and practical application of metamaterial. Here, we propose a vanadium dioxide-based terahertz metamaterial device, which is switchable between being a transmitter and an absorber. The transmission and absorption characteristics and temperature tunable properties of phase change metamater

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Chen, Ke, Xinyao Luo, Guowen Ding, Junming Zhao, Yijun Feng, and Tian Jiang. "Broadband microwave metamaterial absorber with lumped resistor loading." EPJ Applied Metamaterials 6 (2019): 1. http://dx.doi.org/10.1051/epjam/2018011.

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Narrow absorption bandwidth has been a fundamental drawback hindering many metamaterial absorbers for practical applications. In this paper, by loading lumped resistors, we have successfully designed a microwave metamaterial absorber with multioctave wide absorption bandwidth covering the entire X- and Ku-bands, while keeping the thickness of the absorber less than 1/10 of the working wavelength. The polarization-insensitive absorber shows a good angular stability for both transverse electric (TE) and transverse magnetic (TM) incidences. Prototype has been fabricated and measured to validate t

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Abdalla, M. A., and Z. Hu. "On The Study of Development of X Band Metamaterial Radar Absorber." Advanced Electromagnetics 1, no. 3 (2012): 94. http://dx.doi.org/10.7716/aem.v1i3.25.

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A new development of metamaterial applications in radar absorbers for X band is introduced. Two modifications were suggested based on two different approaches which are a new called fan shaped resonator absorber and a modified high impedance metamaterial absorber. Both approaches introduce thin radar absorber (5.3% at centre frequency) with wide bandwidth and high absorption level. The theoretical concepts of each design are explained and validated using full wave simulation. Results illustrate that the new development can achieve wider bandwidth, multiple operating bands; the increase in band

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Tan, Yunxin. "Matamaterial development for Terahertz absorber with dynamic tunable property." Applied and Computational Engineering 135, no. 1 (2025): 86–95. https://doi.org/10.54254/2755-2721/2025.21084.

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Typical metamaterials which could achieve dynamic tunable property of terahertz absorption such as VO2, STO and graphene were reviewed. VO2, STO, Graphene are typical terahertz dynamic tunable absorbing metamaterial. Their unique optoelectronic properties can alter the properties of the material itself under changing external conditions, thereby achieving dynamic modulation of absorbed terahertz waves. The reasons of metamaterials could be used as terahertz dynamic absorbers were analyzed from the aspects of lattice structure, material properties, and electrical properties. The adjustable prop

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Huang, Xiaojun, Ziliang Zhou, Miao Cao, Rong Li, Cuizhen Sun, and Xiaoyan Li. "Ultra-Broadband Mid-Infrared Metamaterial Absorber Based on Multi-Sized Resonators." Materials 15, no. 15 (2022): 5411. http://dx.doi.org/10.3390/ma15155411.

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Mid-infrared metamaterial absorbers have many applications in the field of infrared detection, infrared thermal energy utilization, radiation refrigeration, invisible camouflage, etc. In this study, we designed an ultra-broadband mid-infrared metamaterial absorber based on multi-sized resonators. The structure of the absorber consisted of a gold substrate and nine resonators. The simulated results showed that the absorptivity of the absorber was higher than 90% in the 8.33–15.09 μm waveband with an average absorptivity of 95.17%. The energy distributions of the electric and magnetic fields wer

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KAJIKAWA, Kotaro. "Metamaterial Light Absorber." Review of Laser Engineering 44, no. 1 (2016): 27. http://dx.doi.org/10.2184/lsj.44.1_27.

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Grant, J., I. J. H. McCrindle, C. Li, and D. R. S. Cumming. "Multispectral metamaterial absorber." Optics Letters 39, no. 5 (2014): 1227. http://dx.doi.org/10.1364/ol.39.001227.

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A., Elakkiya, Radha Sankararajan, Sreeja B.S., and Manikandan E. "Modified I-shaped hexa-band near perfect terahertz metamaterial absorber." Circuit World 46, no. 4 (2020): 281–84. http://dx.doi.org/10.1108/cw-11-2019-0155.

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Purpose A novel and simple six-band metamaterial absorber is proposed in the terahertz region, which is composed of an I-shaped absorber and circular ring with four gaps and a continuous metal ground plane separated by only 0.125 mm polyimide dielectric substrate. Initially, I-shaped resonator gives three bands at 0.4, 0.468 and 0.4928 THz with the absorptivity of 99.3%, 97.9% and 99.1%, respectively. The purpose of this paper is to improve the number of bands, for which the authors added the circular ring with four gaps, so the simulated metamaterial absorber exhibited six absorption peaks at

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El Assal, Aicha, Hanadi Breiss, Ratiba Benzerga, Ala Sharaiha, Akil Jrad, and Ali Harmouch. "Toward an Ultra-Wideband Hybrid Metamaterial Based Microwave Absorber." Micromachines 11, no. 10 (2020): 930. http://dx.doi.org/10.3390/mi11100930.

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In this paper, we propose a novel design of an ultra-wideband hybrid microwave absorber operating in the frequency range between 2 GHz and 18 GHz. This proposed hybrid absorber is composed of two different layers that integrate a multiband metamaterial absorber and a lossy dielectric layer. The metamaterial absorber consists of a periodic pattern that is composed of an arrangement of different scales of coupled resonators and a metallic ground plane, and the dielectric layer is made of epoxy foam composite loaded with low weight percentage (0.075 wt.%) of 12 mm length carbon fibers. The numeri

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Song, Zijun, Guolu Ma, Zao Yi, Jianguo Zhang, and Yong Zhao. "Metamaterial Solar Absorber Based on Refractory Metal Titanium and Its Compound." Coatings 12, no. 7 (2022): 929. http://dx.doi.org/10.3390/coatings12070929.

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Metamaterials refers to a class of artificial materials with special properties. Through its unique geometry and the small size of each unit, the material can acquire unique electromagnetic field properties that conventional materials do not have. Based on these factors, we put forward a kind of high absorption near-ultraviolet to near-infrared electromagnetic wave absorber of the solar energy. The surface structure of the designed absorber is composed of TiN-TiO2-Al2O3 with rectangles and disks, and the substrate is Ti-Al2O3-Ti layer. In the study band range (0.1–3.0 μm), the solar absorber’s

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Han, Chen, Renbin Zhong, Zekun Liang, et al. "Independently Tunable Multipurpose Absorber with Single Layer of Metal-Graphene Metamaterials." Materials 14, no. 2 (2021): 284. http://dx.doi.org/10.3390/ma14020284.

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This paper reports an independently tunable graphene-based metamaterial absorber (GMA) designed by etching two cascaded resonators with dissimilar sizes in the unit cell. Two perfect absorption peaks were obtained at 6.94 and 10.68 μm with simple single-layer metal-graphene metamaterials; the peaks show absorption values higher than 99%. The mechanism of absorption was analyzed theoretically. The independent tunability of the metamaterial absorber (MA) was realized by varying the Fermi level of graphene under a set of resonators. Furthermore, multi-band and wide-band absorption were observed b

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Han, Chen, Renbin Zhong, Zekun Liang, et al. "Independently Tunable Multipurpose Absorber with Single Layer of Metal-Graphene Metamaterials." Materials 14, no. 2 (2021): 284. http://dx.doi.org/10.3390/ma14020284.

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This paper reports an independently tunable graphene-based metamaterial absorber (GMA) designed by etching two cascaded resonators with dissimilar sizes in the unit cell. Two perfect absorption peaks were obtained at 6.94 and 10.68 μm with simple single-layer metal-graphene metamaterials; the peaks show absorption values higher than 99%. The mechanism of absorption was analyzed theoretically. The independent tunability of the metamaterial absorber (MA) was realized by varying the Fermi level of graphene under a set of resonators. Furthermore, multi-band and wide-band absorption were observed b

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Wang, Pan, Chengyu Xiao, Shaowen Chen, et al. "Tilted Wire Metamaterials Enabling Ultra-Broadband Absorption from Middle to Very Long Infrared Regimes." Photonics 11, no. 10 (2024): 899. http://dx.doi.org/10.3390/photonics11100899.

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Infrared metamaterial absorbers underpin many entrenched scientific and technical applications, including radiative cooling, energy harvesting, infrared detectors, and microbolometers. However, achieving both perfect and ultra-broadband absorption remains an unmet scientific challenge because the traditional metamaterial absorber strategy suffers from complex multi-sized resonators and multiple meta-element patterns. We demonstrate a simple ultra-broadband infrared metamaterial absorber consisting of tilted graphite wires and an Al reflector. The proposed tilted wires-based metamaterial (TWM)

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Tian, Feng, Xia Ma, Han Hao, et al. "Broadband Bi-Directional Polarization-Insensitive Metamaterial Absorber." Materials 14, no. 23 (2021): 7339. http://dx.doi.org/10.3390/ma14237339.

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Conventional metamaterial absorbers eliminate the transmitted electromagnetic wave by attaching the metal plate with the unidirectional absorption performance; these absorbers limit the practical applications to a large extent. In this paper, we present a broadband bi-directional metamaterial absorber by etching chip resistors on the resonators for expanding the bandwidth, and two orthogonal I-shaped structures are pasted on the both sides of the ultra-thin substrate (FR-4) instead of the metal plate for enhancing absorptance of the absorber. Simulated results show that absorptance of the desi

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Alsaif, Haitham, Jonas Muheki, Naim Ben Ali, Kaouther Ghachem, Jaymit Surve, and Shobhit K. Patel. "Thin-Film Solar Energy Absorber Structure for Window Coatings for Self-Sufficient Futuristic Buildings." Micromachines 14, no. 8 (2023): 1628. http://dx.doi.org/10.3390/mi14081628.

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Energy-efficient buildings are a new demand in the current era. In this paper, we present a novel metamaterial design aimed at achieving efficient solar energy absorption through a periodic MMA structure composed of a W-GaAs-W. The proposed structure can be implemented as the window coating and in turn it can absorb the incident solar energy and, then, this energy can be used to fulfill the energy demand of the building. Our results reveal significant improvements, achieving an average absorptance of 96.94% in the spectral range. Furthermore, we explore the influence of the angle of incidence

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Anjali, M., Kumaran Rengaswamy, Abhishek Ukey, Lincy Stephen, C. V. Krishnamurthy, and V. Subramanian. "Flexible metamaterial based microwave absorber with epoxy/graphene nanoplatelets composite as substrate." Journal of Applied Physics 133, no. 6 (2023): 063105. http://dx.doi.org/10.1063/5.0138171.

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Customization of substrates for the design of metamaterial absorbers gives the user a wide choice of parameters like flexibility, thickness, dielectric constant, etc. Polymer composites are attractive in this regard as they provide a variety of options to fabricate substrates with desirable properties depending on the matrix and filler materials. In this work, flexible polymer nanocomposites with different weight percentages of graphene nanoplatelets (GnP) in epoxy were fabricated and the dielectric characterization was performed. The presence of GnP increased the real part of the dielectric c

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Xiong, Zhihui, Zhixi Li, Guangqiang He, Kecheng Su, Yien Huang, and Guowei Deng. "Polarization-Angle-Insensitive Dual-Band Perfect Metamaterial Absorbers in the Visible Region: A Theoretical Study." Coatings 14, no. 2 (2024): 236. http://dx.doi.org/10.3390/coatings14020236.

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Metamaterial absorbers have been studied extensively due to their potential applications in the field of photonics. In this paper, we propose a simulation study of a polarization-angle-insensitive dual-band perfect metamaterial absorber with absorption peaks at 654 and 781 nm, respectively. By adjusting the structure parameters, dielectric thickness, and refractive index, the obtained absorber has high scalability in the visible wavelength region. To further understand the performance of the cross-structure absorber, analysis of its electric and magnetic field distribution shows that it produc

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Sabluk, A. V., and A. A. Basharin. "Terahertz radiation converter based on metamaterial." Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering 26, no. 1 (2023): 56–65. http://dx.doi.org/10.17073/1609-3577-2023-1-56-65.

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Since the early 1980s, the terahertz range (from 0.1 to 10 THz) attracts constant attention of both fundamental and applied physics. Due to its unique properties, terahertz radiation finds it’s applications in spectroscopy, defectoscopy, and security systems. The construction of efficient absorbers and converters in terahertz range is crucial for further development of terahertz technologies. In this work, we use a frequency-selective high-Q metamaterial to construct a converter of terahertz radiation into the infrared radiation. The converter consists of a metamaterial absorber of terahertz r

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Cao, Miao, Xiaojun Huang, Lina Gao, Xiaoyan Li, Linyan Guo, and Helin Yang. "Broadband Bi-Directional All-Dielectric Transparent Metamaterial Absorber." Nanomaterials 12, no. 23 (2022): 4124. http://dx.doi.org/10.3390/nano12234124.

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Water-based absorbers have shown great development potential in the past few years. In this paper, an all-dielectric transparent bi-directional water-based broadband metamaterial absorber is designed. The simulation results indicate that absorptance of the absorber is over 90% in 5.7–41.6 GHz, and its fraction bandwidth is 151.8%. The experimental results are greatly consistent with the simulations. The designed absorber has excellent performances of polarization insensitivity, oblique incidence stability and thermal stability. When the absorptance is more than 0.8, the maximum incident angle

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Lu, Taiguo, Dawei Zhang, Peizhen Qiu, et al. "Ultrathin Terahertz Dual-Band Perfect Metamaterial Absorber Using Asymmetric Double-Split Rings Resonator." Symmetry 10, no. 7 (2018): 293. http://dx.doi.org/10.3390/sym10070293.

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In this article, an ultrathin terahertz dual band metamaterial absorber made up of patterned asymmetrical double-split rings and a continuous metal layer separated by a thin FR-4 layer is designed. Simulation results show that two almost identical strong absorption peaks appear in the terahertz band. When the incident electric field is perpendicular to the ring gaps located at 11 μm asymmetrically, the absorptivity of 98.6% at 4.48 THz and 98.5% at 4.76 THz can be obtained. The absorption frequency and the absorptivity of the absorber can be modulated by the asymmetric distribution of the gaps

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Sabluk, Andrey V., and Alexey A. Basharin. "Metamaterial-based terahertz converter." Modern Electronic Materials 8, no. 4 (2022): 149–55. http://dx.doi.org/10.3897/j.moem.8.4.98919.

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Since the early 1980s the terahertz range (0.1 to 10 THz) attracts permanent attention of fundamental and applied science. Due to its unique properties terahertz radiation is used in a wide range of applications such as spectroscopy, non-destructive defectoscopy and security systems. The design of high-efficiency terahertz absorbers and converters is currently the main task in the development of terahertz technologies. In this work a frequency selective high-Q metamaterial is used for the fabrication of a terahertz-to-infrared converter. The converter consists of a metamaterial-based terahertz

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Sabluk, Andrey V., and Alexey A. Basharin. "Metamaterial-based terahertz converter." Modern Electronic Materials 8, no. (4) (2022): 149–55. https://doi.org/10.3897/j.moem.8.4.98919.

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Since the early 1980s the terahertz range (0.1 to 10 THz) attracts permanent attention of fundamental and applied science. Due to its unique properties terahertz radiation is used in a wide range of applications such as spectroscopy, non-destructive defectoscopy and security systems. The design of high-efficiency terahertz absorbers and converters is currently the main task in the development of terahertz technologies. In this work a frequency selective high-Q metamaterial is used for the fabrication of a terahertz-to-infrared converter. The converter consists of a metamaterial-based terahertz

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Jeong, Heijun, Manos M. Tentzeris, and Sungjoon Lim. "Optically Transparent Metamaterial Absorber Using Inkjet Printing Technology." Materials 12, no. 20 (2019): 3406. http://dx.doi.org/10.3390/ma12203406.

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An optically transparent metamaterial absorber that can be obtained using inkjet printing technology is proposed. In order to make the metamaterial absorber optically transparent, an inkjet printer was used to fabricate a thin conductive loop pattern. The loop pattern had a width of 0.2 mm and was located on the top surface of the metamaterial absorber, and polyethylene terephthalate films were used for fabricating the substrate. An optically transparent conductive indium tin oxide film was introduced in the bottom ground plane. Therefore, the proposed metamaterial absorber was optically trans

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H., Hassan, and Abu M. "Ultra Thin Flexible Octagonal Metamaterials Absorber." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 3 (2018): 833–39. https://doi.org/10.11591/ijeecs.v10.i3.pp833-839.

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An ultra thin flexible octagonal metamaterial absorber on 0.13 mm fastFilm D27 material has been presented in this paper. CST microwave studio was used in designing and simulating the octagonal metamaterial absorber. The flexible octagonal metamaterial absorber was resonated at 10 GHz with highly perfect absorbance of 99.98%. However, Full Width Half Maximum (FWHM) of the absorbance was relatively small 135 MHz affected from the ultra thin substrate used. By using triangular lattice arrangement of the unit cell, the FWHM could be increased to 171 MHz. Besides that, combination of resonating fr

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Daniel, Salman, and Prince Bawuah. "Right-Angle Shaped Elements as Dual-Band Metamaterial Absorber in Terahertz." Photonic Sensors 10, no. 3 (2019): 233–41. http://dx.doi.org/10.1007/s13320-019-0573-6.

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AbstractMetamaterial absorbers display potential applications in the field of photonics and have been investigated extensively during the last decade. We propose a dual-band resonant metamaterial absorber with right-angle shaped elements (RAEs) in the terahertz range based on numerical simulations. The absorber remains insensitive to a wide range of incidence angles (0°–70°) by showing a minimum absorbance of ~80% at 70°. Furthermore, the proposed absorber is highly independent on any state of polarization of the incidence electromagnetic wave due to the high absorbance, i.e., greater than 80%

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Hassan, H., and M. Abu. "Ultra Thin Flexible Octagonal Metamaterials Absorber." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 3 (2018): 833. http://dx.doi.org/10.11591/ijeecs.v10.i3.pp833-839.

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<span lang="IN">An ultra thin flexible octagonal metamaterial absorber on 0.13 mm fastFilm D27 material has been presented in this paper. CST microwave studio was used in designing and simulating the octagonal metamaterial absorber. The flexible octagonal metamaterial absorber was resonated at 10 GHz with highly perfect absorbance of 99.98%. However, Full Width Half Maximum (FWHM) of the absorbance was relatively small 135 MHz affected from the ultra thin substrate used. By using triangular lattice arrangement of the unit cell, the FWHM could be increased to 171 MHz. Besides that, combin

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Yudistira, Hadi Teguh, and Kiki Kananda. "The Preliminary Microwave Metamaterial Absorber Based on Ring-Shaped for Stealth Technology." IOP Conference Series: Earth and Environmental Science 1209, no. 1 (2023): 012028. http://dx.doi.org/10.1088/1755-1315/1209/1/012028.

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Abstract Controlling electromagnetic waves on the material is needed by several applications such as sensors, stealth technology, and energy harvesting. An artificial material that could control electromagnetic waves is called metamaterial. Meanwhile, a metamaterial absorber can absorb the electromagnetic wave. Two concepts can be used to explain the absorbing phenomena on metamaterial absorber: the matching impedance of the air and the part of the imaginary that is high of the index of refractive collectively or the theory of interference that is destructive. The correlation of matching air i

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