Theoretical Understanding of an Absorption-Based Surface Plasmon Resonance Sensor Based on Kretchmann's Theory

摘要: An optical-absorption-based surface plasmon resonance (SPR) sensor is proposed, and its theoretical aspects are discussed in terms of mathematical descriptions numerical simulations the SPR curve. The response theory absorption-based sensing based on expansion Kretchmann's into case which optical absorption layer expressed by Lorentz model. were performed using a three-layer Fresnel equation p-polarization. It was found that curve behavior depends frequency relation between light source thickness metal layer. divided three types according to large, small, equal relations excitation frequencies. Each type further two due thin thick layers. this new ...