scholarly journals Ultra-broadband, polarization-independent, wide-angle absorption in impedance-matched metamaterials with anti-reflective moth-eye surfaces

2018 ◽  
Vol 26 (18) ◽  
pp. 24031 ◽  
Author(s):  
Rushin Contractor ◽  
Giuseppe D’Aguanno ◽  
Curtis Menyuk
Keyword(s):  
Wide Angle ◽  
Polarization Independent

scholarly journals Polarization-independent wide-angle triple-band metamaterial absorber

2011 ◽  
Vol 19 (10) ◽  
pp. 9401 ◽  
Author(s):  
Xiaopeng Shen ◽  
Tie Jun Cui ◽  
Junming Zhao ◽  
Hui Feng Ma ◽  
Wei Xiang Jiang ◽  
...  
Keyword(s):  
Metamaterial Absorber ◽  
Wide Angle ◽  
Polarization Independent ◽  
Triple Band

An Ultra-Thin Triple-Band Polarization-Independent Wide-Angle Microwave Metamaterial Absorber

Plasmonics ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. 1983-1991 ◽  
Author(s):  
Kavitha Muthukrishnan ◽  
Venkateswaran Narasimhan
Keyword(s):  
Metamaterial Absorber ◽  
Wide Angle ◽  
Polarization Independent ◽  
Triple Band

scholarly journals Wide-Angle Polarization-Independent Ultra-Broadband Absorber from Visible to Infrared

Nanomaterials ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 27 ◽  
Author(s):  
Jing Liu ◽  
Wei Chen ◽  
Jia-Chun Zheng ◽  
Yu-Shan Chen ◽  
Cheng-Fu Yang
Keyword(s):  
Incidence Angle ◽  
Impedance Matching ◽  
Infrared Light ◽  
Localized Surface Plasmon ◽  
Polarization Angle ◽  
Wide Angle ◽  
Broadband Absorber ◽  
Planar Film ◽  
Absorber Structure ◽  
Polarization Independent

We theoretically proposed and numerically analyzed a polarization-independent, wide-angle, and ultra-broadband absorber based on a multi-layer metasurface. The numerical simulation results showed that the average absorption rates were more than 97.2% covering the broad wavelength of 400~6000 nm (from visible light to mid-infrared light) and an absorption peak was 99.99%, whatever the polarization angle was changed from 0° to 90°. Also, as the incidence angle was swept from 0° to 55°, the absorption performance had no apparent change over the wavelength ranges of 400 to 6000 nm. We proved that the proposed metasurface structure was obviously advantageous to achieve impedance matching between the absorber and the free space as compared with conventionally continuous planar-film structures. The broadband and high absorption resulted from the strong localized surface plasmon resonance and superposition of resonant frequencies. As expectable the proposed absorber structure will hold great potential in plasmonic light harvesting, photodetector applications, thermal emitters and infrared cloaking.

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