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Using the finite element method (FEM), this paper presents a numerical investigation of the performance analysis of a D-type photonic crystal fiber (D-type PCF) for refractive index sensing, based on surface plasmon resonance (SPR) with a planar structure made out of a metamaterial. COMSOL Multiphysics was used to evaluate the design of the referred refractive index optical fiber sensor, with higher...
A side-polished plastic optical fiber (POF) was proposed for liquid’s refractive index (RI) measurement. The POF was polished into an arc shape on the surface of the fiber for increasing its RI sensitivity. The experiment shows that the straight side-polished POFs are not sensitive enough as the RI probes. After the straight side-polished POFs were bent into the U-shaped probes, the sensitivities...
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