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Title: Metasurface Broadband Solar Absorber

Here, we demonstrate a broadband, polarization independent, wide-angle absorber based on a metallic metasurface architecture, which accomplishes greater than 90% absorptance in the visible and near-infrared range of the solar spectrum, and exhibits low absorptivity (emissivity) at mid- and far-infrared wavelengths. The complex unit cell of the metasurface solar absorber consists of eight pairs of gold nano-resonators that are separated from a gold ground plane by a thin silicon dioxide spacer. Moreover, our experimental measurements reveal high-performance absorption over a wide range of incidence angles for both s- and p-polarizations. We also investigate numerically the frequency-dependent field and current distributions to elucidate how the absorption occurs within the metasurface structure.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [1] ;  [1] ;  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Report Number(s):
LA-UR-15-24569; SAND-2017-0018J; SAND-2017-0019J
Journal ID: ISSN 2045-2322; srep20347
Grant/Contract Number:
AC52-06NA25396; AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; Metamaterials
OSTI Identifier:
1258002
Alternate Identifier(s):
OSTI ID: 1339274; OSTI ID: 1339275

Azad, Abul K., Kort-Kamp, Wilton J. M., Sykora, Milan, Weisse-Bernstein, Nina R., Luk, Ting S., Taylor, Antoinette J., Dalvit, Diego A. R., and Chen, Hou-Tong. Metasurface Broadband Solar Absorber. United States: N. p., Web. doi:10.1038/srep20347.
Azad, Abul K., Kort-Kamp, Wilton J. M., Sykora, Milan, Weisse-Bernstein, Nina R., Luk, Ting S., Taylor, Antoinette J., Dalvit, Diego A. R., & Chen, Hou-Tong. Metasurface Broadband Solar Absorber. United States. doi:10.1038/srep20347.
Azad, Abul K., Kort-Kamp, Wilton J. M., Sykora, Milan, Weisse-Bernstein, Nina R., Luk, Ting S., Taylor, Antoinette J., Dalvit, Diego A. R., and Chen, Hou-Tong. 2016. "Metasurface Broadband Solar Absorber". United States. doi:10.1038/srep20347. https://www.osti.gov/servlets/purl/1258002.
@article{osti_1258002,
title = {Metasurface Broadband Solar Absorber},
author = {Azad, Abul K. and Kort-Kamp, Wilton J. M. and Sykora, Milan and Weisse-Bernstein, Nina R. and Luk, Ting S. and Taylor, Antoinette J. and Dalvit, Diego A. R. and Chen, Hou-Tong},
abstractNote = {Here, we demonstrate a broadband, polarization independent, wide-angle absorber based on a metallic metasurface architecture, which accomplishes greater than 90% absorptance in the visible and near-infrared range of the solar spectrum, and exhibits low absorptivity (emissivity) at mid- and far-infrared wavelengths. The complex unit cell of the metasurface solar absorber consists of eight pairs of gold nano-resonators that are separated from a gold ground plane by a thin silicon dioxide spacer. Moreover, our experimental measurements reveal high-performance absorption over a wide range of incidence angles for both s- and p-polarizations. We also investigate numerically the frequency-dependent field and current distributions to elucidate how the absorption occurs within the metasurface structure.},
doi = {10.1038/srep20347},
journal = {Scientific Reports},
number = ,
volume = 6,
place = {United States},
year = {2016},
month = {2}
}