Numerical analysis of a Kretschmann surface plasmon resonance sensor with silver/TiO2/BaTiO3/silver/graphene for refractive index sensing
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Abstract:
The sensitivity of a Kretschmann surface plasmon resonance (SPR) sensor was analyzed. The Kretschmann setup had multiple layers, a BK7 prism, silver, barium titanate (BaTiO3), titanium dioxide (TiO2), and graphene. The BaTiO3 and TiO2 coatings were sandwiched between two silver layers. The sensitivity of 260°/RIU has been achieved. The graphene layers are added to the configuration to improve sensitivity and as a bio-compatibility agent. This configuration can be used for biochemical sensors.
Huda A. Zain, Malathy Batumalay, Hazli R. A. Rahim, Sulaiman Wadi Harun. Numerical analysis of a Kretschmann surface plasmon resonance sensor with silver/TiO2/BaTiO3/silver/graphene for refractive index sensing[J]. Optoelectronics Letters,2023,19(10):583-586