An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor
AbstractTo solve the problem of air hole coating and analyte filling in microstructured optical fiber-based surface plasmon resonance (SPR) sensors, we designed an exposed-core grapefruit fiber (EC-GFs)-based SPR sensor. The exposed section of the EC-GF is coated with a SPR, supporting thin silver film, which can sense the analyte in the external environment. The asymmetrically coated fiber can support two separate resonance peaks (x- and y-polarized peaks) with orthogonal polarizations and x-polarized peak, providing a much higher peak loss than y-polarized, also the x-polarized peak has higher wavelength and amplitude sensitivities. A large analyte refractive index (RI) range from 1.33 to 1.42 is calculated to investigate the sensing performance of the sensor, and an extremely high wavelength sensitivity of 13,500 nm/refractive index unit (RIU) is obtained. The silver layer thickness, which may affect the sensing performance, is also discussed. This work can provide a reference for developing a high sensitivity, real-time, fast-response, and distributed SPR RI sensor. View Full-Text
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Yang, X.; Lu, Y.; Wang, M.; Yao, J. An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor. Sensors 2015, 15, 17106-17114.
Yang X, Lu Y, Wang M, Yao J. An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor. Sensors. 2015; 15(7):17106-17114.Chicago/Turabian Style
Yang, Xianchao; Lu, Ying; Wang, Mintuo; Yao, Jianquan. 2015. "An Exposed-Core Grapefruit Fibers Based Surface Plasmon Resonance Sensor." Sensors 15, no. 7: 17106-17114.