scholarly journals A wide-angle and TE/TM polarization-insensitive terahertz metamaterial near-perfect absorber based on multi-layer plasmonic structure

2021 ◽  
Author(s):  
Yuanbo Sun ◽  
Yanpeng Shi ◽  
Xiaoyu Liu ◽  
Jinmei Song ◽  
Meiping Li ◽  
...  
Keyword(s):  
Design Method ◽  
Metamaterial Absorber ◽  
Perfect Absorber ◽  
Wide Angle ◽  
Flexible Design ◽  
Plasmonic Structure ◽  
Terahertz Band ◽  
Polarization Insensitive ◽  
Perfect Metamaterial Absorber

A kind of near-perfect metamaterial absorber, made of only Au and Si, has been presented in the terahertz band with extremely high absorptance. A flexible design method is proposed, which...

An ultra-broadband polarization-independent perfect absorber for the solar spectrum

RSC Advances ◽  
2015 ◽  
Vol 5 (76) ◽  
pp. 61955-61959 ◽  
Author(s):  
Xunjun He ◽  
Shitao Yan ◽  
Guangjun Lu ◽  
Qinfei Zhang ◽  
Fengmin Wu ◽  
...  
Keyword(s):  
Solar Energy ◽  
Solar Spectrum ◽  
Metamaterial Absorber ◽  
Perfect Absorber ◽  
Wide Angle ◽  
Polarization Insensitive ◽  
Polarization Independent

We numerically investigated an ultra-broadband, polarization-insensitive, and wide-angle metamaterial absorber for harvesting solar energy.

scholarly journals Theoretical design of a triple-band perfect metamaterial absorber based on graphene with wide-angle insensitivity

2021 ◽  
Vol 23 ◽  
pp. 104037
Author(s):  
Miao Pan ◽  
Huazhu Huang ◽  
Baodian Fan ◽  
Wenzhi Chen ◽  
Shuai Li ◽  
...  
Keyword(s):  
Metamaterial Absorber ◽  
Wide Angle ◽  
Theoretical Design ◽  
Perfect Metamaterial Absorber ◽  
Triple Band

Wide-Angle Ultra-Broadband Metamaterial Absorber with Polarization-Insensitive Characteristics

2021 ◽  
Vol 38 (2) ◽  
pp. 027801
Author(s):  
Peng Chen ◽  
Xianglin Kong ◽  
Jianfei Han ◽  
Weihua Wang ◽  
Kui Han ◽  
...  
Keyword(s):  
Metamaterial Absorber ◽  
Wide Angle ◽  
Polarization Insensitive

scholarly journals Research on Perfect and Tunable Metamaterial Absorber Based on Crosshair-shaped Graphene

2021 ◽  
Vol 2109 (1) ◽  
pp. 012015
Author(s):  
Yiran Guo ◽  
Yunping Qi ◽  
Chuqin Liu ◽  
Weiming Liu ◽  
Xiangxian Wang
Keyword(s):  
Relaxation Time ◽  
Chemical Potential ◽  
Incident Angle ◽  
Fdtd Method ◽  
Reference Value ◽  
Metamaterial Absorber ◽  
Selective Absorption ◽  
Perfect Absorber ◽  
Wide Angle ◽  
Perfect Absorption

Abstract Graphene, as a new nano-material, according to the physical properties of electric field localization and selective absorption on light of surface plasmon resonance (SPR), a tunable, multi-band and wide-angle perfect absorber based on crosshair-shaped graphene is devised by using the Finite Difference in Time Domain (FDTD) method. In this paper, the effects of chemical potential, relaxation time, and incident angle of light on the absorptivity of graphene are systematically discussed. The simulation experiment shows that there are two absorption peaks with perfect absorption rate appeared in the study range, and the maximum modulation index can be obtained by changing the relaxation time. Finally, it proves that the absorber is insensitive to wide-angle of light. Thus, it is able to be concluded that the absorber has a great reference value to sensor, wireless communication, biomedical and other fields.

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