Infrared spatial and frequency selective metamaterial with near-unity absorbance.
TL;DR: This work demonstrates, for the first time, a spatially dependent metamaterial perfect absorber operating in the infrared regime, and achieves an experimental absorption of 97% at a wavelength of 6.0 μm.
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Abstract: We demonstrate, for the first time, a spatially dependent metamaterial perfect absorber operating in the infrared regime We achieve an experimental absorption of 97% at a wavelength of 60 microns, and our results agree well with numerical full-wave simulations By using two different metamaterial sublattices we experimentally demonstrate a spatial and frequency varying absorption which may have many relevant applications including hyperspectral sub-sampling imaging
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Citations
A polarization-sensitive mid-infrared plasmonic absorber for multi-band resonance
TL;DR: In this article, a dual cross-shape perfect absorber metamaterial (PAM) was developed to obtain multi-band spectrum at mid-infrared, which is attributed to the polarization sensitive excitation of plasmonic resonance.
2
•Dissertation
Absorbants à métamatériaux : étude théorique et expérimentale
Alexandre Sellier
- 13 Jun 2014
TL;DR: In this paper, a solution for pallier a ces inconvenients grâce aux absorbants a metamateriaux is proposed, in which a modele theorique and techniques for definir leur frequence de fonctionnement and les parametres necessaires for obtenir une absorption totale are presented.
Actively tunable and switchable terahertz metamaterials with multi-band perfect absorption and polarization conversion
Ying Zhu,Zhiyu Huang,Jiangbin Su,Bin Tang +3 more
TL;DR: Multi-band perfect absorption and polarization conversion in an actively tunable terahertz metamaterial based on vanadium dioxide and graphene.
2
Tuning infrared emission from microstrip arrays
William L. Schaich,Irina Puscasu +1 more
TL;DR: In this paper, the authors identified the physical mechanism for this selective suppression of emission peaks and found that some of these peaks can be suppressed over a narrow range of frequencies, which leaves one with well-separated, narrow-band emission peaks.
2
Impact of resonator rotational symmetry on infrared metamaterial absorber
B. Ni,Xiaoshuang Chen,J. Y. Ding,G. H. Li,Wei Lu +4 more
- 17 Oct 2013
TL;DR: In this article, the authors investigated the impact of rotational symmetry of the metamaterial perfect absorber on its performance and showed that a peak appears at the same wavelength in the absorption spectrum no matter the polarization of the incident light parallels to x axis or y axis.
2
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