Performance characteristics and permittivity modeling of a surface plasmon resonance sensor for metal surface monitoring in a synthetic maritime environment

Christopher R. Lavers; A. M. Cree; D. Jenkins; N. HmaSalah; M. Findlay

doi:10.1117/12.2585161

8 November 2020 Performance characteristics and permittivity modeling of a surface plasmon resonance sensor for metal surface monitoring in a synthetic maritime environment

Christopher R. Lavers, A. M. Cree, D. Jenkins, N. HmaSalah, M. Findlay

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Proceedings Volume 11525, SPIE Future Sensing Technologies; 115252S (2020) https://doi.org/10.1117/12.2585161
Event: SPIE Future Sensing Technologies, 2020, Online Only

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Abstract

Surface Plasmon Resonance (SPR), an established optical sensing mode for providing quantified surface, is applied here to evaluate its suitability to provide optical parameters from metal layer measurements in a synthetic marine environment. We investigated silver noble metal films exposed to standard saline solution. Silver layers exhibit both long-term durability, and linear temporal reflectivity change, recorded in SPR minimum angle and SPR curve shape. Optical sensor design was achieved using Fresnel’s optical theory for isotropic multi-layer media. We developed a datafitting routine, providing numerical real and imaginary permittivity, and thickness solutions for corroded surfaces.

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Christopher R. Lavers, A. M. Cree, D. Jenkins, N. HmaSalah, and M. Findlay "Performance characteristics and permittivity modeling of a surface plasmon resonance sensor for metal surface monitoring in a synthetic maritime environment", Proc. SPIE 11525, SPIE Future Sensing Technologies, 115252S (8 November 2020); https://doi.org/10.1117/12.2585161

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