Analysis of Highly Sensitive Photonic Crystal Biosensor for Glucose Monitoring

In this study, a novel compact and fully integrated 2D photonic crystal (PhC) biosensor with high sensitivity has been proposed for Glucose monitoring. The simulation results are obtained using 2D finite element time domain method (FETDM). To evaluate the performance of the suggested design, the transmission spectrum through the reported structure has been calculated. The effect of the structure geometrical parameters of the biosensor is studied to maximize the biosensor sensitivity. The suggested biosensor offers high sensitivity of 422 nm/RIU with high linearity. Additionally, the suggested biosensor has a simple design and is easy for fabrication. The enhancement of the sensitivity of the PhC biosensor is very important to amplify the detection of the small variation in analyte’s physical properties. Therefore, the achieved sensitivity enhancement can improve the applications of Glucose monitoring. Index Terms Biosensor, finite element time domain method, photonic crystal, sensitivity, transmission.

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