Surface Plasmon Photodetectors Based on Noble Metals

In this work, high sensitivity noble metals used in the Kretschmann configuration based photodetectors applied to detect presence of biological and chemical species solutions are investigated. The angle incidence film thickness dependencies surface plasmon polariton resonance (SPPR) gold, silver copper by attenuated total reflection (ATR) method studied monitor evaluate SPR reflectance reflectivity change. analysis electric field wave which appears at interface between metallic layer air is carried out finite element (FEM). simulation performed using COMSOL Multiphysics software supports FEM. aim present study find most suitable metal its optimum improve performance photodetector. Keywords: Attenuated method, FEM multiphysics software, configuration, metals, reflectivity.