Results 51 to 60 of about 110,697 (224)

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

Photonic metamaterial absorber designs for infrared solar-cell applications [PDF]

, 2010
Conference name: Proceedings of SPIE, Next Generation (Nano) Photonic and Cell Technologies for Solar Energy ConversionDate of Conference: 1–4 August 2010We propose a metamaterial based absorber design that operates at the infrared regime.
Alıcı, Kamil Boratay, Ekmel Ozbay, Özbay, Ekmel, Kamil Boratay Alici   +3 more
core   +1 more source

Critical Coupling in Semi‐Trasparent Fano Resonators for Photothermal Converters

Advanced Functional Materials, EarlyView.
An ultrathin metal–insulator multilayer architecture is engineered to exploit Fano‐resonant critical coupling, completely suppressing optical reflectance while achieving a balanced 50:50 trade‐off between absorbance and transmittance. Upon laser excitation at resonance, the metamaterial generates intense localized heat (ΔT≈550∘C$\Delta T {\approx }550^\
Giuseppe Emanuele Lio, Giuseppe Nicoletta, Roberto Caputo, Antonio Ferraro   +3 more
wiley   +1 more source

Enhancing solar-thermal energy conversion with silicon-cored tungsten nanowire selective metamaterial absorbers

iScience, 2021
Summary: This work experimentally studies a silicon-cored tungsten nanowire selective metamaterial absorber to enhance solar-thermal energy harvesting. After conformally coating a thin tungsten layer about 40 nm thick, the metamaterial absorber exhibits ...
Jui-Yung Chang, Sydney Taylor, Ryan McBurney, Xiaoyan Ying, Ganesh Allu, Yu-Bin Chen, Liping Wang   +6 more
doaj   +1 more source

Plasmonic and metamaterial structures as electromagnetic absorbers [PDF]

Laser & Photonics Reviews, 2014
Abstract Electromagnetic 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

Bistable Isochoric Chiral Metamaterials with Reprogrammable Multiaxial Responses

Advanced Functional Materials, EarlyView.
An isochoric bistable rotational unit cell enables in situ modification of internal contact conditions post‐fabrication, without altering the global envelope dimensions of the surrounding architecture. By selectively switching between open and closed states, the tessellated chiral metamaterial can reprogram its volumetric response, including bulk ...
Shujia Chen, Lei Wu, Jingran Liu, Damiano Pasini   +3 more
wiley   +1 more source

Electromagnetic absorber based on metamaterial [PDF]

, 2022
The purpose of this research is to explore the construction of a multi band ideal electromagnetic metamaterial absorber. A used most microwave metamaterial absorber capable of outstanding triple-band absorption is exhibited.
Ahmed, Rawan Nazar Ahmed
core   +1 more source

Design and fabrication a metamaterial based absorber for GSM and DCS band application [PDF]

, 2017
A novel Metamaterial Absorber (MA) based on rectangular shaped resonators with slot has been proposed in this paper. This metamaterial unit cell absorber possesses a nearly wide angle perfect absorption of incidence wave andpolarization independence. The
Ghandehari, Mehdi Bahadorzadeh, Jahanbakht, Mohammad   +1 more
core   +1 more source

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

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

Advanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim, Haeseong Kim, Joo Hwan Ko, Gil Ju Lee, Dae‐Hyeong Kim, Young Min Song   +5 more
wiley   +1 more source