Abstract
This study reports on numerical investigation carried out over a newly designed open micro-channel incorporated, side polished single mode fiber (SMF) based plasmonic sensor. The proposed sensor operates on the principle of surface plasmon resonance (SPR) phenomenon to enhance the sensing performance. The commercially available COMSOL Multiphysics software tool is used to design sensor and finite element method (FEM) is used for numerical investigation. From the detail study, an average sensitivity of 1757 nm/RIU (refractive index unit) is obtained with a nanoscale gold strip for wide range of analyte RIs from 1.33 to 1.38. Result indicates that the fabricated sensor can be effectively used in RI measurement of the various fields involving chemical and biological sensing.
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