Performance characteristics and permittivity modeling of a surface plasmon resonance sensor for metal surface monitoring in a synthetic maritime environment
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2020-11-08Author
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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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