Analyte detection based on SPR in 12-fold quasi-periodic PCF. (31st August 2021)

• Record Type: Journal Article
• Authors: Abbasiyan, Amin; Noori, Mina; Vakili, Mahsa; Tourinezhad, Nima
• Is Part Of: Physica scripta. Volume 96:Number 12(2021)
• Publication Date: 2021-08-31
• Subjects: quasi-periodic -- sensor -- 12-fold -- surface plasmon polariton -- bio-sensors; Physics -- Periodicals; 530.05
• DOI: 10.1088/1402-4896/ac1fab
• Languages: English
• ISSNs: 0031-8949

Abstract

Abstract: In this article, an SPR sensor based on 12-fold quasi-periodic PCF composed of Ge-doped silica is introduced for analyte detection. The outer surface of the cladding is covered by a 40 nm gold layer serving as the plasmonic layer for the proposed sensor. The birefringence induced due to the inherent characteristic of the 12-fold pattern in the cross-section provides discrepancy for the operation of the structure regarding x- and y-polarizations. The wavelength sensitivity, amplitude sensitivity, and resolution of 12150 nm.RIU −1, 678 RIU −1, and 8.23 × 10 –6 RIU, respectively are obtained for the proposed sensor. The FEM method has been implemented to investigate the performance of the proposed sensor for biosensing application in a detection range of 1.33–1.41.