Acta Photonica Sinica, Volume. 46, Issue 8, 823005(2017)
Analysis of Optical Properties of Metal - Dielectric Microplate Array Infrared Absorber
A reflective-type infrared filter is proposed based on a two-dimensional periodic micro-structure of circular aluminum disc-circular silica disc-aluminum substrate. Its infrared spectral reflectance is numerically simulated by finite element method. The simulated results show that this micro-structure exhibits excellent spectral filtering over 4~11 μm spectral range which is tunable, insensitive to TE or TM polarization and incident angles over 0 to 60°. The extraordinary infrared reflectance is deciphered with the plasmon polariton resonance theory, upon which a multilayered nanoring structure is proposed for further tuning to longer wavelengths and better absorption efficiency.
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WEI Dong, ZHANG Gui-zhong, DING Xin, YAO Jian-quan. Analysis of Optical Properties of Metal - Dielectric Microplate Array Infrared Absorber[J]. Acta Photonica Sinica, 2017, 46(8): 823005
Received: Mar. 16, 2017
Accepted: --
Published Online: Oct. 30, 2017
The Author Email: Dong WEI (weid_1992@tju.edu.cn)