Sensing application of metamaterial perfect absorber based on nanodisk array

Shuwen Chu; Huizhen Yuan; Xuhui Zhang; Huixuan Gao; Li Yu; Wei Peng

doi:10.1117/12.2549257

20 December 2019 Sensing application of metamaterial perfect absorber based on nanodisk array

Shuwen Chu, Huizhen Yuan, Xuhui Zhang, Huixuan Gao, Li Yu, Wei Peng

Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 1120942 (2019) https://doi.org/10.1117/12.2549257
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China

Abstract

We report a dual-band perfect absorber based on nanodisk array for sensing application in the visible region. Due to the excitation of the magnetic resonance mode, a narrow band absorption peak appears and the absorption rate is greater than 99.9%. The other is due to the excitation of local surface plasmon resonance mode, exhibiting broadband absorption characteristics, and the absorption value is greater than 80%. This structure has a wide angular range absorption characteristic. Finally, we calculated the sensing performance of the structure with refractive index ranging from 1.33 to 1.37. The refractive index sensitivity is 250 nm/RIU and 170 nm/RIU. Therefore, our research provides an important theoretical guidance for narrow-band absorption in the visible region for sensing measurements. This has important application prospects in imaging, sensing and optoelectronic devices.

Citation Download Citation

Shuwen Chu, Huizhen Yuan, Xuhui Zhang, Huixuan Gao, Li Yu, and Wei Peng "Sensing application of metamaterial perfect absorber based on nanodisk array", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 1120942 (20 December 2019); https://doi.org/10.1117/12.2549257

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KEYWORDS

Absorption

Refractive index

Metamaterials

Visible radiation

Electromagnetism

Surface plasmons

Optoelectronic devices

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