Research Papers

Design of an ultra-broadband and polarization-insensitive solar absorber using a circular-shaped ring resonator

[+] Author Affiliations
Dan Hu

Anyang Normal University, College of Physics and Electrical Engineering, Anyang 455000, China

Hong-Yan Wang

Anyang Normal University, College of Media and Communications, Anyang 455000, China

Qiao-Fen Zhu

Hebei University of Engineering, College of Science, Handan 056038, China

J. Nanophoton. 10(2), 026021 (May 23, 2016). doi:10.1117/1.JNP.10.026021
History: Received February 2, 2016; Accepted May 2, 2016
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Abstract.  An ultra-broadband and polarization-independent metamaterial absorber consisting of a chromium circular-shaped ring resonator embedded in a dielectric layer and a chromium ground plane is numerically investigated in the solar spectrum. Simulation results show that the absorber can obtain the average absorption of 95.5% over most the solar spectrum, near-infrared, and short-wavelength infrared regime (400 to 2500 nm). The absorption mechanism of the ultra-broadband metamaterial absorber originates from the overlapping of two different resonance wavelengths. In particular, the electromagnetic energy is almost completely dissipated in the chromium layer, which makes it independent on the loss of the dielectric layer and widens the range of choices for potential dielectric materials. Our designed absorber has high practical feasibility and appears to be very promising for solar energy harvesting, thermal imaging, and emissivity control applications.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Dan Hu ; Hong-Yan Wang and Qiao-Fen Zhu
"Design of an ultra-broadband and polarization-insensitive solar absorber using a circular-shaped ring resonator", J. Nanophoton. 10(2), 026021 (May 23, 2016). ; http://dx.doi.org/10.1117/1.JNP.10.026021


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