材料科学
人工智能
分析化学(期刊)
计算机科学
化学
色谱法
作者
Hairui Fang,Chenjing Wei,Dong Wang,Long Yuan,Shangbin Jiao,Zhiyu Bao,Huajun Yang
出处
期刊:Journal of The Optical Society of America B-optical Physics
[The Optical Society]
日期:2020-02-13
卷期号:37 (3): 736-736
被引量:40
摘要
A photonic crystal fiber based on a surface plasmon resonance sensor coated with segmented silver-titanium dioxide ( A g - T i O 2 ) film is proposed for microfluid refractive index sensing. The sensing properties of the designed sensor are analyzed numerically by the full-vectorial finite element method. The results display that the wavelength sensitivity can be tuned by the thickness of the T i O 2 film and segmented number and angle of the A g - T i O 2 film. It is observed that an average sensitivity of 6329 nm/RIU for refractive indexes ranging from 1.330 to 1.360, and a maximum wavelength sensitivity of 10600 nm/RIU with a high wavelength resolution of 9.43 × 10 − 6 R I U , can be achieved in the sensing range of 1.350 to 1.355. In addition, it also shows a maximum amplitude sensitivity of 633.4001 R I U − 1 , and the maximum figure of merit is 303 with n a varying from 1.330 to 1.360, which can be applied to the field of chemical and biological analysis.
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