Improvement of the performance parameters of the surface plasmon resonance biosensor using Al{sub 2}O{sub 3} and WS{sub 2}
- Rajshahi University of Engineering & Technology, Department of Electrical and Electronic Engineering (Bangladesh)
Here, proposed Kretschmann configuration based surface plasmon resonance biosensor shows immense improvement in its performance parameters. This highly sensitive biosensor provides a higher value of quality factor and detection accuracy. We presented a five-layer model of a biosensor with two dimensional transition metal di-chalcogenides Tungsten disulfide (WS2) in addition with Al2O3 layer. By using one layer of WS2 with six layers of Al2O3, the highest sensitivity (227.5 °/RIU), detection accuracy (1.1123), and quality factor (28.26 RIU{sup −1}) can be achieved. CaF2 as coupling prism has also played a remarkable role in enhancing the performance parameters for its low refractive index.
- OSTI ID:
- 22950258
- Journal Information:
- Optical and Quantum Electronics, Journal Name: Optical and Quantum Electronics Journal Issue: 6 Vol. 51; ISSN OQELDI; ISSN 0306-8919
- Country of Publication:
- United States
- Language:
- English
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