A compact tunable graphene-based broadband metamaterial absorber in the terahertz (THz) frequency band was presented in this paper. The proposed absorber is the classic sandwich structure, which is composed of graphene cross resonators of different sizes placed on the top of a dielectric spacer ...
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
A broadband metamaterial absorber (MA) composed of hexagonal-arranged single-sized titanium nitride (TiN) nano-disk array and monolayer molybdenum disulfide (MoS2) is studied using finite-difference time-domain (FDTD) simulations. The structure of TiN nano-disk array/dielectric silica (SiO2)/aluminum...
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 ...
A pre-screening study of honeycomb sandwich structure filled with green materials for noise reduction. Compos Part A-Appl Sci Manuf, 2022, 163: 107226 Article MATH Google Scholar Wen Z H, Wang D W, Ma L. Sound transmission of composite sandwich panel with face-centered cubic core. Mech ...
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 ...
BeamTrack系列F150A-BB-26-PPS激光测量传感器可以测量激光光束的大小、位置、功率和能量。孔径为26mm,测量激光光束大小、位置时,精度分别可达5%和0.1mm。其功率测量范围是40mW~150W,而能量测量范围是20mJ~100J。其具有频谱平坦的宽带涂层,频谱覆盖...
In this Letter, we develop a compact- sized and lumped-element-free non-planar MM absorber with high absorption at low frequency and small reflection in a broadband spectrum by using a magnetic MAM as the sub- strate. As depicted in Fig. 1(b), the as-developed non-planar...
The analysis of EM properties, both theoretical and experi- mental together with their structure–property relationship of the fabricated meta- absorber has been discussed. Materials and methods Design and simulations: computational EM The current study deals with EM simulations based on the finite ...
(MI) stacks fabricated employing straightforward layer deposition techniques and are, therefore, lithography-free and large-scale compatible. We scrutinize the impact of different physical parameters of an MIMI absorber structure with analysis of each contributing metal layer. After obtaining the optimal ...