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Near-infrared broad...
Near-infrared broadband absorber with film-coupled multilayer nanorods
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Chen, Xingxing (författare)
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Gong, Hanmo (författare)
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Dai, Shuowei (författare)
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Zhao, Ding (författare)
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Yang, Yuanqing (författare)
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Li, Qiang (författare)
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- Qiu, Min (författare)
- KTH,Optik och Fotonik, OFO
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(creator_code:org_t)
- Optical Society of America, 2013
- 2013
- Engelska.
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Ingår i: Optics Letters. - : Optical Society of America. - 0146-9592 .- 1539-4794. ; 38:13, s. 2247-2249
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Turning the surfaces of noble metals (metasurfaces) into black (highly absorptive) surfaces can be potentially applied in thermophotovoltaics, sensing, tailoring thermal emissivity, etc. Here we demonstrate an extremely broadband absorber for the 900-1600 nm wavelength range with robust high absorption efficiency. The inexpensive droplet evaporation method is implemented to create patterns of nanoparticles dispersed on a gold film spaced by a thin dielectric layer. The diversity of the complicated random stacking of the chemically synthesized gold nanorods is the major factor for the broad absorption band. Such a metamaterial absorber may pave the way for cost-effective manufacture of large-area black metasurfaces.
Nyckelord
- Total Absorption
- Gold Nanorods
- Light
- Surfaces
- Gratings
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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