Self-Calibration Highly Sensitive Photonic Crystal Fiber Biosensor

Abstract

A novel design of a highly sensitive self-calibration biosensor based on a surface plasmon photonic crystal fiber is presented and analyzed using a full-vectorial finiteelement method. In this paper, the sensor geometrical parameters are optimized to achieve high sensitivity for the two polarized modes. The numerical results reveal that the resonant peaks corresponding to the two polarized beams are highly sensitive to the variation of the analyte refractive index. Therefore, high refractive index sensitivity of about 6700 nm/refractive index unit (RIU) and 10000 nm/RIU with the corresponding resolution of 1:49 Â 10 À5 and 1:0 Â 10 À5 RIU can be obtained according to the quasitransverse magnetic (TM) and quasi-transverse electric (TE) modes, respectively. Additionally, the reported self-calibration biosensor has high linearity and high accuracy. Furthermore, the suggested biosensor has great potential for biological and biochemical analytes detection.

Highly sensitive face-shaped label-free photonic crystal refractometer for glucose concentration monitoring

“…Recently, photonic crystal fibers (PCFs) have gained extensive research interests in different applications (Hameed et al 2009a, b). PCF biosensors can be implemented with high sensitivity (Azzam et al 2016;Hameed et al 2015Hameed et al , 2016. However, the PCF biosensors suffer from complicated design structures.…”

Overview of photonic devices based on functional material-integrated photonic crystal fibers

“…The creative design of a self-calibrating RI sensor based on SPR was achieved, and the analyte was placed outside the metal layer of the structure. The geometric parameters were optimized to obtain satisfactory outcomes of high linearity and accuracy for the fundamental transverse electric (TE) and transverse magnetic (TM) modes, respectively [138]. Our research group investigated the sensing performance of a goldcoated PCF with a single-channel design.…”

Research on Dual-Channel and Dual-core Plasmonic Sensor Based Photonic Crystal Fiber for Refractive Index Sensing

“…Usually, SPR can be excited by traditional prism-coupled configuration based Kretschmann, but the Kretschmann structure has large volume and is not suitable for real-time and remote sensing [12,13]. The SPR sensors based photonics crystal fiber (PCF) have overcome above drawbacks due to small size [14], high integration and miniaturization of PCF [15]. In addition, the PCF with flexible structure design [16] and low transmission loss [17] is easy to satisfy the phase matching and achieve a strong coupling between the core mode and SPR mode [18], which makes the PCF-SPR sensors become a research hotspot.…”