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Home > Archive>Volume 38, Issue 6, 2019 >790-797. DOI:10.11972/j.issn.1001-9014.2019.06.016
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Localized surface plasmon resonance based tunable dual-band absorber within 1-10 μm
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Affiliation:

1.State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China;2.University of Chinese Academy of Sciences, Beijing 100049, China

Fund Project:

National Key R&D Program of China 2016YFA0202200;National Natural Science Foundation of China 11574335 61471345 51772213;Shanghai Science and Technology Committee 16JC1403500Supported by National Key R&D Program of China （2016YFA0202200）,National Natural Science Foundation of China （11574335, 61471345, 51772213）,Shanghai Science and Technology Committee （16JC1403500）

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    Abstract:

    The sub-wavelength artificial metamaterials which demonbstrate nearly-perfect absorption of a specific wavelength can overcome the defects of low absorption efficiency, large thickness, and working wavelength limitation of band gap in the infrared photoelectric device application. In this paper, a metal/medium/metal structure is used to construct a sub-wavelength structure that can be prepared over a large area, which can achieve dual-band infrared perfect absorption in the 1-10 μm band. Through analyzing the results of Finite-Difference Time-Domain simulation and experiment, we believe that the high-frequency absorption peak of the absorber is mainly derived from FP resonance interference enhanced absorption; while the absorption peak in the low-frequency infrared band is mainly due to the excitation of the electric dipole resonance and the magnetic resonance mode. By adjusting the size of the upper layer of gold particles in the way of annealing, the positions of the two absorption peaks can be effectively regulated.

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YU Wei-Wei, LU Yue, PENG Fang, PAN Xiao-Hang, SUN Yan, HAO Jia-Ming, CHEN Xin, DAI Ning. Localized surface plasmon resonance based tunable dual-band absorber within 1-10 μm[J]. Journal of Infrared and Millimeter Waves,2019,38(6):790~797

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History
  • Received:February 04,2019
  • Revised:November 19,2019
  • Adopted:March 25,2019
  • Online: December 17,2019
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