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Ultrabroadband Ligh...
Ultrabroadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab
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- Cui, Yanxia (författare)
- KTH,Zhejiang-KTH Joint Research Center of Photonics, JORCEP,Department of Mechanical Science and Engineering and Beckman Institute of Advanced Science and Technology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States § Department of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, Chin
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Fung, Kin Hung (författare)
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Xu, Jun (författare)
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Ma, Hyungjin (författare)
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- Jin, Yi (författare)
- KTH,Zhejiang-KTH Joint Research Center of Photonics, JORCEP
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- He, Sailing (författare)
- KTH,Zhejiang-KTH Joint Research Center of Photonics, JORCEP
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Fang, Nicholas X. (författare)
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(creator_code:org_t)
- 2012-02-08
- 2012
- Engelska.
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Ingår i: Nano Letters. - : American Chemical Society (ACS). - 1530-6984 .- 1530-6992. ; 12:3, s. 1443-1447
- Relaterad länk:
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http://arxiv.org/pdf...
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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
- We present an ultrabroadband thin-film infrared absorber made of sawtoothed anisotropic metamaterial. Absorptivity of higher than 95% at normal incidence is supported in a wide range of frequencies, where the full absorption width at half-maximum is about 86%. Such property is retained well at a very wide range of incident angles too. Light of shorter wavelengths are harvested at upper parts of the sawteeth of smaller widths, while light of longer wavelengths are trapped at lower parts of larger tooth widths. This phenomenon is explained by the slowlight modes in anisotropic metamaterial waveguide. Our study can be applied in the field of designing photovoltaic devices and thermal emitters.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Slow light
- absorber
- metamaterials
- ultrabroadband
- thin film
- anisotropic
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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