Design of low cost surface plasmon resonance sensor

In this work is analyzed from the theoretical point of view the possibility to obtain a surface plasmon resonance immunosensor based on BK7 glass prism. This proposed low-cost sensor works at fixed angle and fixed wavelength by detecting the variation of the output intensity. From the variation of the intensity with the SPR angle the optimal value of the external incidence has been assessed. The results presented in this study demonstrated the feasibility of the proposed sensor.