Design of high-sensitive glucose concentration sensor based on ring-shaped holes photonic crystal cavity

被引：3
作者：
Hocini, Abderraouf [1 ]
Mouetsi, Souheil [1 ]
Hocini, Abdesselam [2 ]
机构：
[1] Univ Larbi Ben Mhidi, Pole Univ Ain Beida, Dept Genie Elect, Fac Sci & Sci Appl, Oum El Bouaghi, Algeria
[2] Univ MSila, Lab Anal Signaux & Syst, Dept Elect, Msila, Algeria
来源：
JOURNAL OF NANOPHOTONICS | 2020年 / 14卷 / 01期
关键词：
photonic crystal; glucose concentration; biosensor; high sensitivity; WAVE-GUIDE; PLATFORM; PERFORMANCE; FABRICATION; RESONATORS;
D O I：
10.1117/1.JNP.14.016006
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A rhombus-shaped holes-based photonic sensor is proposed and analyzed using the finite-difference time-domain method embedded in the commercial simulator RSoft. By changing the refractive indices in the biosensor under testing, the transmission properties of light are changed according to the changes in glucose concentrations. Various sensitivities are obtained and given as 604.5, 589.91, 537.86, and 520.5 nm/RIU, corresponding to both quality (Q) factors as high as 4.414 x 10(5), 2.1 x 10(5), 8.34 x 10(5), and 3.247 x 10(6) and a detection limit of 5.89 x 10(-7), 1.27 x 10(-6), 3.44 x 10(-7), and 8.99 x 10(-8), respectively. The obtained results were within the cavity region. Therefore, the Q factor and the sensitivity were significantly improved for the proposed structure, which makes this proposed design a potential and promising label-free biosensing device for the biomedical prognosis. (C) 2020 Society of Photo Optical Instrumentation Engineers (SPIE)
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页数：11
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