Results 21 to 30 of about 526,512 (257)

Design and performance evaluation of a novel broadband THz modulator based on graphene metamaterial for emerging applications

Frontiers in Materials, 2023
Introduction: Metamaterials consist of periodic arrangements of artificial subwavelength units that possess electromagnetic properties not present in natural media. It has attracted more interest due to its ability to alter electromagnetic radiation in a
Jun Jiat Tiang, Naglaa F. Soliman, Imran Khan, Imran Khan, Jaeyoung Choi, Hee Chan Chung, Dag Øivind Madsen   +6 more
doaj   +1 more source

Reconfigurable metamaterials for optoelectronic applications

International Journal of Optomechatronics, 2020
In recent years, electromagnetic characteristics of metamaterials has aroused great interest because of innovative fundamental understanding as well as promising potential applications in optics, semiconductors, imaging, and sensing.
Yu-Sheng Lin, Zefeng Xu
doaj   +1 more source

Metamaterial Electromagnetic Wave Absorbers [PDF]

Advanced Materials, 2012
Abstract The advent of negative index materials has spawned extensive research into metamaterials over the past decade. Metamaterials are attractive not only for their exotic electromagnetic properties, but also their promise for applications. A particular branch–the metamaterial perfect absorber (MPA)–has garnered interest due to the
Claire M, Watts, Xianliang, Liu, Willie J, Padilla   +2 more
openaire   +2 more sources

Dirac-like cone-based electromagnetic zero-index metamaterials

Light: Science & Applications, 2021
Metamaterials with a Dirac-like cone dispersion at the center of the Brillouin zone behave like an isotropic and impedance-matched zero refractive index material at the Dirac-point frequency.
Yang Li, C. T. Chan, Eric Mazur
doaj   +1 more source

Programmable Information Processing With Reconfigurable Self‐Contact Variable Stiffness Mechanical Metamaterial [PDF]

Advanced science
Reconfigurable self‐contact variable stiffness metamaterials based on shape memory polymers enable programmable stiffness switching. Static arrays store and encrypt information with immunity to electromagnetic interference, while asymmetric stiffness converts symmetric vibration into directional matter transport.
Qin H, Zhu W, Wang X, Shen C, Cheng L, Lu T, Liu T, Meng H.   +7 more
europepmc   +2 more sources

Metamaterial Analog of Electromagnetically Induced Transparency [PDF]

Physical Review Letters, 2007
We present a new type of electromagnetic planar metamaterial that exhibit strong dispersion at a local minimum of losses and is believed to be the first metamaterial analog of electromagnetically induced transparency. We demonstrate that pulses propagating through such metamaterials experience considerable delay, whereas the thickness of the structure ...
Papasimakis, N., Fedotov, V.A., Zheludev, N.I., Prosvirnin, S.L.   +3 more
openaire   +5 more sources

All-dielectric invisibility cloaks made of BaTiO3-loaded polyurethane foam [PDF]

, 2011
Transformation optics has led the way in the development of electromagnetic invisibility cloaks from science fiction to engineering practice. Invisibility cloaks have been demonstrated over a wide range of the electromagnetic spectrum, and with a variety
Yang Hao, Kallos, Efthymios, Khalid Z Rajab, Bao, D, Hao, Y, Tang, WX, Yang, SF, Argyropoulos, C, Tang, Wenxuan, Di Bao, Christos Argyropoulos, Shoufeng Yang, Rajab, Khalid Z., Bao, Di, Efthymios Kallos, Bao, D., Piao, YZ, Argyropoulos, C., Yongzhe Piao, Piao, Yongzhe, Hao, Y., Kallos, E, Hao, Yang, Tang, W.X., Rajab, KZ, Piao, Y.Z., Kallos, E., Yang, Shoufeng, Argyropoulos, Christos, Rajab, K.Z., Wenxuan Tang   +30 more
core   +1 more source

Advanced application of flexible metamaterials at visible frequencies [PDF]

, 2015
The authors acknowledge support by EPSRC (EP/I004602/1 and EP/J004200/1).Flexible metamaterials (FMMs) at optical frequencies can conform to a wide range of target geometries whilst allowing their optical properties to be tuned post-fabrication.
Andrea Di Falco, Shen, Y., Jingzhi Wu, Kirkpatrick, B.C., Di Falco, A., Peter Reader-Harris, Reader-Harris, P., Wu, J., Yufang Shen, Blair C. Kirkpatrick, Di Falco, A.; id_orcid   +10 more
core   +1 more source

Electromagnetic Wave Interactions with a Metamaterial Cloak [PDF]

Physical Review Letters, 2007
We establish analytically the interactions of electromagnetic wave with a general class of spherical cloaks based on a full wave Mie scattering model. We show that for an ideal cloak the total scattering cross section is absolutely zero, but for a cloak with a specific type of loss, only the backscattering is exactly zero, which indicates the cloak can
Chen, Hongsheng, Wu, Bae-Ian, Zhang, Baile, Kong, Jin Au   +3 more
openaire   +4 more sources

Electromagnetic scattering analysis of metamaterials based on non-conformal FEM–BEM–DDM method [PDF]

AIP Advances
The inherent properties of electromagnetic metamaterials, such as their large-scale, periodic, multi-media, and complex geometric structures, make the Finite Element Method with the Domain Decomposition Method (FEM–DDM) an ideal simulation approach ...
Bingqi Liu, Hao Wang, Li Xu, Hangxin Liu, Honghai Fan, Siyi Yang, Bin Li   +6 more
doaj   +1 more source