Design of cephalosporin detection system based on metamaterial infrared absorber

Ruobing Liu; Xinran Li; Fei Liu

doi:10.1117/12.2686930

6 August 2023 Design of cephalosporin detection system based on metamaterial infrared absorber

Ruobing Liu, Xinran Li, Fei Liu

Proceedings Volume 12781, International Conference on Optoelectronic Information and Functional Materials (OIFM 2023); 1278131 (2023) https://doi.org/10.1117/12.2686930
Event: 2023 International Conference on Optoelectronic Information and Functional Materials (OIFM 2023), 2023, Guangzhou, JS, China

Abstract

A metamaterial-based infrared absorber was proposed for the detection of different concentrations of cephalosporin. The metamaterial structure designed in this paper consists of three layers: metal substrate, intermediate layer and nanocavity array. The simulation results show that the nano-cavity array has a perfect absorption peak in the infrared region in which the absorption coefficient is up to 99.72%. The refractive index of the solution will be affected by different concentrations of cephalosporin, thereby affecting the position of the absorption peak in the infrared absorber of the metamaterial. The influence of structural parameters on detection accuracy is also studied, where the FOM of the sensor reaches 400 when the nanocavity radius is small.

Citation Download Citation

Ruobing Liu, Xinran Li, and Fei Liu "Design of cephalosporin detection system based on metamaterial infrared absorber", Proc. SPIE 12781, International Conference on Optoelectronic Information and Functional Materials (OIFM 2023), 1278131 (6 August 2023); https://doi.org/10.1117/12.2686930

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KEYWORDS

Refractive index

Absorption

Infrared radiation

Sensors

Metamaterials

Silicon

Electromagnetic metamaterials

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