In this paper, a highly sensitive surface plasmon photonic crystal fiber (PCF) biosensor is reported and studied to monitor glucose concentration. The suggested design is based on a well-known large mode area (LMA) single mode PCF infiltrated by a plasmonic material. Additionally, an etching process is applied to increase the biosensor sensitivity. The numerical analysis is obtained using a full vectorial finite element method (FVFEM). The suggested biosensor based on a commercial PCF with plasmonic rod achieves sensitivity as high as 7900 nm/RIU with corresponding resolution of 1.26 × 10-5RIU-1. The analysis also reveals that the proposed biosensor has a linear performance which is needed practically. Therefore, the reported biosensor has advantages in terms of fabrication feasibility and high linear sensitivity
Mohammad Y. Azab, Mohamed Farhat O. Hameed, A. M. Heikal, Mohamed A. Swillam, and S. S. A. Obayya, "Analysis of highly sensitive surface plasmon photonic crystal fiber biosensor," Proc. SPIE 10541, Photonic and Phononic Properties of Engineered Nanostructures VIII, 105411N (Presented at SPIE OPTO: February 01, 2018; Published: 21 February 2018); https://doi.org/10.1117/12.2290998.
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