Broadband absorberMicrowave metamaterialRCS reductionPolarization converterIn this letter, an ultra-thin microwave metamaterial for ultra-broadband radar cross section (RCS) reduction is presented. In the unit
We report a facile design of an ultra-thin broadband metamaterial absorber (MA) for C-band applications by utilizing a single layer of a metal-dielectric-metal structure of FR-4 substrate. The absorption performances are characterized using a numerical method. The proposed MA exhibits the ...
Nanoporous platinum broadband absorber has attracted interest in thermosensorics and IR photodetection due to its unique properties. In this work we report the physical mechanism underlying broadband absorption in electrochemically-grown, nanoporous Pt films by analyzing NIR-ViS-UV spectral ellipsometry data...
In this paper, a single-layer broadband low-profile ultrathin metamaterial microwave absorber is proposed for wide angle of incidence. The proposed absorber provides triple-band absorption under normal incidence of electromagnetic wave with two peaks lying in X-band and one in Ku-band. The unit ...
Broadband metamaterial absorber on a single-layer ultrathin substrateIn this article, a broadband metamaterial microwave absorber on a low-cost FR-4 Epoxy substrate is proposed. The unit cell of the absorber consists of a staircase shape metallic patch placed on the top of the metal-backed ultra...
Fig. 1: Machine learning-assisted meta-absorber for enhanced broadband absorption. a Schematic of the structure of the proposed meta-absorber consisting of four concentric silver nanorings embedded in an a-Si active layer (thickness 20 nm) on the top, a dielectric spacer SiO2 layer in the mi...
broadbandmicrowaveFlexible and ultrathin wide-band metamaterial absorbers are suggested and demonstrated in the microwave-frequency range. By using resonators of different sizes and conductive fibers on metallic-pattern layer, the total thickness of metamaterial absorber is reduced to be only 1/349 with...
In this paper, an ultrathin acoustic metamaterial with deep subwavelength thickness is proposed as super absorber for broadband low-frequency underwater sound. The unit cell of the proposed metamaterial consists of a perforated plate and a space-coiled water channel with a rubber coating attached to...
Polarization insensitive, broadband terahertz metamaterial absorber. Opt. Lett. 39(6), 1589–1962 (2011). Google Scholar Grant, J. et al. Multi-spectral materials: hybridisation of optical plasmonic filters, a mid infrared metamaterial absorber and a terahertz metamaterial absorber. Opt. Express. ...
Ti3C2Tx MXene sponge composite as broadband terahertz absorber. Adv. Opt. Mater. 8, 2001120 (2020). Article Google Scholar Xiao, X., Wang, H., Urbankowski, P. & Gogotsi, Y. Topochemical synthesis of 2D materials. Chem. Soc. Rev. 47, 8744–8765 (2018). Article Google Scholar ...