Results 51 to 60 of about 2,328 (261)

Broadband water-based metamaterial absorber with wide angle and thermal stability

AIP Advances, 2020
In order to widen the absorption band of the metamaterial absorber to expand its application field, using the electromagnetic characteristics of water in the microwave band, a water-based metamaterial absorber with a structure different from the ...
Xiaoqi Zhang, Fengping Yan, Xuemei Du, Wei Wang, Min Zhang   +4 more
doaj   +1 more source

Ultra-broadband microwave metamaterial absorber [PDF]

Applied Physics Letters, 2012
A microwave ultra-broadband polarization-independent metamaterial absorber is demonstrated. It is composed of a periodic array of metal-dielectric multilayered quadrangular frustum pyramids. These pyramids possess resonant absorption modes at multi-frequencies, of which the overlapping leads to the total absorption of the incident wave over an ultra ...
Ding, Fei, Cui, Yanxia, Ge, Xiaochen, Jin, Yi, He, Sailing   +4 more
openaire   +2 more sources

Nanoscale Spatial Tuning of Superconductivity in Cuprate Thin Films via Direct Laser Writing

Advanced Functional Materials, EarlyView.
Maskless direct laser writing enables local control of oxygen stoichiometry in epitaxial YBCO thin films under ambient conditions. Sub‐micrometer grayscale patterns with tunable optical response and superconducting transport properties are achieved.
Irene Biancardi, Valerio Levati, Jordi Alcalà, Thomas Günkel, Nicolas Lejeune, Riccardo Girelli, Alejandro V. Silhanek, Valeria Russo, Narcís Mestres, Daniela Petti, Anna Palau, Edoardo Albisetti   +11 more
wiley   +1 more source

Ultra-wideband metamaterial absorber based on a hybrid structure of resistor-reinforced cross kite frame

Materials & Design
A wideband metamaterial absorber with a thin layer remains a challenging task. An ultra-wideband metamaterial absorber based on a hybrid structure of a resistor-reinforced cross-shaped kite frame is proposed.
Qingmin Wang, Wenjie An, Xia Bai, Zhiwei Gao, Hongya Wu   +4 more
doaj   +1 more source

Plasmonic and metamaterial structures as electromagnetic absorbers [PDF]

Laser & Photonics Reviews, 2014
AbstractElectromagnetic absorbers have drawn increasing attention in many areas. A series of plasmonic and metamaterial structures can work as efficient narrowband absorbers due to the excitation of plasmonic or photonic resonances, providing a great potential for applications in designing selective thermal emitters, biosensing, etc.
Cui, Yanxia, He, Yingran, Jin, Yi, Ding, Fei, Yang, Liu, Ye, Yuqian, Zhong, Shoumin, Lin, Yinyue, He, Sailing   +8 more
openaire   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Quad-Band Terahertz Absorber Based on a Simple Design of Metamaterial Resonator

IEEE Photonics Journal, 2016
A new design approach for achieving quadband terahertz metamaterial absorber, formed by an asymmetric resonator and a metallic board separated by a certain thickness dielectric layer, is numerically studied and demonstrated.
Ben-Xin Wang, Gui-Zhen Wang
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

Advanced Materials, EarlyView.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko, Chiamaka Akah, Ravinder Dahiya   +2 more
wiley   +1 more source

Numerical Study of a Wide-Angle and Polarization-Insensitive Ultrabroadband Metamaterial Absorber in Visible and Near-Infrared Region

IEEE Photonics Journal, 2019
An ultrabroadband metamaterial absorber structure based on a periodic array of metallic-dielectric multilayered conical frustums is numerically investigated and proposed.
Nguyen Thi Quynh Hoa, Phan Huu Lam, Phan Duy Tung, Tran Sy Tuan, Hugo Nguyen   +4 more
doaj   +1 more source