Akademik Veri Yönetim Sistemi
Optical and Quantum Electronics, cilt.55, sa.12, 2023 (SCI-Expanded, Scopus)
Fiber optic surface plasmon resonance (SPR) sensors are widely used in sensing applications in the fields of physics, chemistry and biology. This paper presents a numerical simulation of a D-shaped fiber optic SPR based refractive index sensor designed with a silver, gold, molybdenum disulfide, and graphene coated structure with and without gratings, for the first time. A FEM-based software is used to carry out the simulation studies. Aiming to obtain the highest performance, gold/silver layers are coated with MoS2 and graphene. Sensor parameters are computed and optimum values are discovered for these parameters; grating periods, gap size between gratings, residual cladding thickness, gratings numbers, and thickness of coating layers. 11,775 nm /RIU as the maximum sensitivity in the range of 1.33–1.4 RI is reached. Results demonstrate that the proposed multilayer and grated structure yields a 98.7% higher sensitivity value with reference to the simulation of a regular D-shaped Ag-coated fiber SPR sensor, which makes it promising for chemical, biochemical, and other applications of the future with the delicate sensing ability.