EPJ Applied Metamaterials最新文献

Safe energy-storage mechanical metamaterials via architecture design 基于建筑设计的安全储能机械超材料

IF 1.6

EPJ Applied Metamaterials Pub Date : 2023-01-01 DOI: 10.1051/epjam/2022018

Junjie You, Chengyu Wang, Li Ma, S. Yin

{"title":"Safe energy-storage mechanical metamaterials via architecture design","authors":"Junjie You, Chengyu Wang, Li Ma, S. Yin","doi":"10.1051/epjam/2022018","DOIUrl":"https://doi.org/10.1051/epjam/2022018","url":null,"abstract":"Mechanical and functional properties of metamaterials could be simultaneously manipulated via their architectures. This study proposes multifunctional metamaterials possessing both load-bearing capacity and energy storage capability, comprising multi-phase lattice metamaterial and cylindrical battery cells. Defect phase are incorporated into the metamaterials, which are then printed with stainless steel powder. The printed metamaterials are assembled with battery cells and compressed. Experimental results revealed that the voids in the lattice metamaterials, could guide deformation mode away from the internal battery cell that postponed the emergence of battery short-circuit. Effects of void phase pattern and content are discussed by simulation. We found that the multifunctional system could absorb greater energy after defect phase incorporation, as designed with proper void phase pattern and content. Also, these findings are further validated for the system with six battery cells. This study demonstrated how to design an energy-storage metamaterials with enhanced mechanical properties and battery safety simultaneously. Also, defect engineering was helpful for battery protection and energy absorption of the multifunctional system.","PeriodicalId":43689,"journal":{"name":"EPJ Applied Metamaterials","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57823847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Thin layers of microwave absorbing metamaterials with carbon fibers and FeSi alloy ribbons to enhance the absorption properties 薄层微波吸收材料采用碳纤维和FeSi合金带，以提高吸收性能

IF 1.6

EPJ Applied Metamaterials Pub Date : 2023-01-01 DOI: 10.1051/epjam/2022019

Lingxi Huang, Y. Duan, Huifang Pang

{"title":"Thin layers of microwave absorbing metamaterials with carbon fibers and FeSi alloy ribbons to enhance the absorption properties","authors":"Lingxi Huang, Y. Duan, Huifang Pang","doi":"10.1051/epjam/2022019","DOIUrl":"https://doi.org/10.1051/epjam/2022019","url":null,"abstract":"In order to break through the bottleneck of narrow effective absorption bandwidth (reflection loss RL ≤ −10 dB) of microwave absorbing materials, herein, we fabricate the metamaterials with carbon fiber (CF) and FeSi alloy (FSA) ribbon metastructure which is distributed in the carbonyl iron powders (CIP)/polyurethane (PU) matrix. The experimental results show that the microwave absorption capacity of the matrix can be significantly enhanced by CF. Compared with the pure matrix, the effective absorption bandwidth increases from 9.4–13.44 GHz to 11–16.8 GHz when the CF is parallel to the electric field vector and the spacing between adjacent CF is 20 mm. Furthermore, the CF and FSA ribbons are arranged in the matrix as an orthogonal arrangement, and the best absorption bandwidth cover 9.76–14.46 GHz when the electric field is parallel and 9.96–14.1GHz when the electric field is vertical when the spacing is 30 mm. The electromagnetic simulation of the metamaterials is calculated, it is proved that the increase of effective absorption bandwidth is due to the strengthening of carbon fiber and its coupling with FSA ribbon. This paper provides a new research path for improving the absorption properties of thin layer microwave absorbing materials.","PeriodicalId":43689,"journal":{"name":"EPJ Applied Metamaterials","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57823860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Applications of negative permeability metamaterials for electromagnetic resonance type wireless power transfer systems 负磁导率超材料在电磁共振型无线电力传输系统中的应用

IF 1.6

EPJ Applied Metamaterials Pub Date : 2023-01-01 DOI: 10.1051/epjam/2022020

Kaiqi Nie, Qing Hou

{"title":"Applications of negative permeability metamaterials for electromagnetic resonance type wireless power transfer systems","authors":"Kaiqi Nie, Qing Hou","doi":"10.1051/epjam/2022020","DOIUrl":"https://doi.org/10.1051/epjam/2022020","url":null,"abstract":"With the development of electric drive systems such as unmanned aerial vehicles and electric vehicles, the charging problem of power supply devices has become increasingly prominent. However, the traditional charging method requires physical circuits, which makes it impossible to achieve freedom of the position in actual use. The wireless power transmission technology, which mainly relies on electromagnetic wave to complete energy transmission, is expected to get rid of the restriction of physical space location and solve the problem of charging location, which has great potential in medical treatment, rescue, detection and other fields. However, the low transmission efficiency and short transmission distance caused by electromagnetic field leakage are the two main problems faced by radio energy transmission systems. In general, with the increase of transmission distance, the transmission efficiency will drop sharply. Fortunately, inserting a negative permeability metamaterial with extraordinary electromagnetic characteristics into the transmitting and receiving coils will greatly alleviate this attenuation trend and can also shield electromagnetic radiation to a certain extent. In this paper, some experiments of negative permeability metamaterials used in electromagnetic resonance type wireless power transfer systems are summarized for reference.","PeriodicalId":43689,"journal":{"name":"EPJ Applied Metamaterials","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57823870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Reflection and transmission of nanoresonators including bi-isotropic and metamaterial layers: opportunities to control and amplify chiral and nonreciprocal effects for nanophotonics applications 包括双各向同性和超材料层在内的纳米谐振器的反射和传输:控制和放大纳米光子学应用中的手性和非互反效应的机会

IF 1.6

EPJ Applied Metamaterials Pub Date : 2023-01-01 DOI: 10.1051/epjam/2023002

E. Starodubtsev

引用次数: 1

An ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonators 一种基于非对称谐振腔的超薄柔性太赫兹电磁诱导透明超表面

IF 1.6

EPJ Applied Metamaterials Pub Date : 2023-01-01 DOI: 10.1051/epjam/2023001

Shohreh Nourinovin, SaeJune Park, Q. Abbasi, A. Alomainy

{"title":"An ultrathin and flexible terahertz electromagnetically induced transparency-like metasurface based on asymmetric resonators","authors":"Shohreh Nourinovin, SaeJune Park, Q. Abbasi, A. Alomainy","doi":"10.1051/epjam/2023001","DOIUrl":"https://doi.org/10.1051/epjam/2023001","url":null,"abstract":"Terahertz (THz) electromagnetically induced transparency-like (EIT-like) metasurfaces have been extensively explored and frequently used for sensing, switching, slow light, and enhanced nonlinear effects. Reducing radiation and non-radiation losses in EIT-like systems contributes to increased electromagnetic (EM) field confinement, higher transmission peak magnitude, and Q-factor. This can be accomplished by the use of proper dielectric properties and engineering novel designs. Therefore, we fabricated a THz EIT-like metasurface based on asymmetric metallic resonators on an ultra-thin and flexible dielectric substrate. Because the quadruple mode is stimulated in a closed loop, an anti-parallel surface current forms, producing a transparency window with a transmission peak magnitude of 0.8 at 1.96 THz. To control the growing trend of EIT-like resonance, the structure was designed with four asymmetry levels. The effect of the substrate on the resonance response was also explored, and we demonstrated experimentally how the ultra-thin substrate and the metasurface asymmetric novel pattern contributed to higher transmission and lower loss.","PeriodicalId":43689,"journal":{"name":"EPJ Applied Metamaterials","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57823881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bandwidth bounds for wide-field-of-view dispersion-engineered achromatic metalenses 宽视场色散工程消色差金属透镜的带宽界限

IF 1.6

EPJ Applied Metamaterials Pub Date : 2022-04-19 DOI: 10.1051/epjam/2022012

K. Shastri, F. Monticone

引用次数: 5

Metagrating solutions for full color single-plate waveguide combiner 全彩色单片波导组合器的超聚光解决方案

IF 1.6

EPJ Applied Metamaterials Pub Date : 2022-01-01 DOI: 10.1051/epjam/2022003

O. Shramkova, V. Drazic, Guillaume Bourcin, B. Varghese, L. Blondé, V. Allié

引用次数: 0

Multi-layer transmission line of spoof surface plasmon polaritons 欺骗表面等离子激元极化的多层传输线

IF 1.6

EPJ Applied Metamaterials Pub Date : 2022-01-01 DOI: 10.1051/epjam/2022010

Yuxi Lu, W. Tang, T. Cui

引用次数: 0

On negative effective mass and negative group velocity in anharmonic seismic metamaterials 非调和地震超材料的负有效质量和负群速度

IF 1.6

EPJ Applied Metamaterials Pub Date : 2022-01-01 DOI: 10.1051/epjam/2022008

R. Zivieri

引用次数: 1

The role of nonlocal response in second harmonic generation at metasurfaces with triangular metaatoms 非局域响应在具有三角元原子的超表面上二次谐波产生中的作用

IF 1.6

EPJ Applied Metamaterials Pub Date : 2022-01-01 DOI: 10.1051/epjam/2022013

Y. B. Habibullah, T. Ishihara

{"title":"The role of nonlocal response in second harmonic generation at metasurfaces with triangular metaatoms","authors":"Y. B. Habibullah, T. Ishihara","doi":"10.1051/epjam/2022013","DOIUrl":"https://doi.org/10.1051/epjam/2022013","url":null,"abstract":"Metasurface consisting of square array of obtuse isosceles triangle metaatoms is found to exhibit much more efficient second harmonic generation (SHG) compared to that of split ring resonators and its heptagonal modification, experimentally as well as numerically. All of them are designed to lack inversion symmetry in horizontal direction but to have vertical symmetry, and to meet the double resonance condition for vertically-polarized fundamental and horizontally-polarized SHG waves. SHG efficiencies were estimated numerically for each structure by evaluating an overlap integral of second order nonlinear polarization and field distribution at the SHG wavelength. The large overlap integral for the triangle metasurface is ascribed to the nonlocal response at the SHG wavelength. Current induced at the center of the triangle near the obtuse angle by horizontally polarized light at SHG wavelength flows toward two corners of acute angles. As a result, polarization charges oscillate in time at the surfaces of two acute corners, which results in strong field oscillation away from the center where the electric field is applied to majority of free electrons. Experimentally observed wavelength dependence of SHG efficiencies for the three metasurfaces are reasonably reproduced by a numerical estimation.","PeriodicalId":43689,"journal":{"name":"EPJ Applied Metamaterials","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57823745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0