We propose a route to obtain broadband absorption in the mid-infrared region by coupling plasmon and phonon polaritons in compact hBN/metal metasurface. Here we show, with the assistance of the dispersion relation contours, that hybrid phonon-plasmon polaritons modes can exist in the hBN/metal ...
The attenuation of low-frequency broadband noise in a light, small form-factor is an intractable challenge. In this paper, a new technology is presented which employs the highly efficient visco-thermal loss mechanism of a micro-perforated plate (MPP) and
Tungsten based anisotropic metamaterial as an ultra-broadband absorber The trapped rainbow effect has been mostly found on tapered anisotropic metamaterials (MMs) made of low loss noble metals, such as gold, silver, etc. In th... Y Lin,Y Cui,F Ding,... - 《Optical Materials Express》 被引...
A dual-band broadband absorber based on frequency selective surface (FSS) is proposed. This double-layer absorber consists of two layers of FSS structure; each layer has a unique construction and plays its wave-absorbing function in different frequency bands. In the low-frequency band, layer I ...
Ultra-broadband Polarization-Independent Wide-Angle THz Absorber Based on Plasmonic Resonances in Semiconductor Square Nut-Shaped Metamaterials Metamaterials are considered to be a promising candidate of making THz absorber for function devices to replace natural materials. Based on geometry evolut... X Li...
Compared to other terahertz absorbers, the absorber designed in this study exhibits simpler structural design, compact form, thin thickness, efficient absorption performance, and a broader bandwidth. This absorber adopts a three-layer structure, including a patterned monolayer graphene metasurface, a ...
A broadband low-reflection metamaterial absorber. Artificially engineered metamaterials have enabled the creation of electromagnetic materials with properties not found in nature. Recent work has demonstra... Gu,S.,Barrett,... - 《Journal of Applied Physics》 被引量: 74发表: 2010年 Design optimizatio...
(341 K), VO2becomes metallic and the metasurface will change into a good absorber, which absorbs more than 90% of the incident light energy. Moreover, in this case, the metasurface still has a meta-lens feature that will operate on the residual light. The special application of our ...
The proposed absorber requires dielectric materials with a relatively large imaginary part. Possible candidates are poorly conductive materials, such as conductive polymer. In addition, conductive composites can have a broad tunablity of real and imaginary parts, which can be achieved via engineering ...
Step-by-step design and optimization of a broadband MIM absorber is presented, geometrically and in terms of materials. The important advantage of this absorber is the use of three large area layers without any need to lithography or any repetition of MI pairs, which makes this absorber as sim...