Tunable perfect absorber for bio-sensin

In this work we have studied a structure based on Localized Surface Plasmon Resonance (LSPR) constituted by spherical gold nanoparticles in which a substance with high electro-optical properties has been inserted to verify its ability to monitor the presence of biomolecules. The study was conducted using one of FEM simulation tool verifying the optical responses to vary the sizes of the elements of the structure and the refractive index of the layer sandwiched. The results showed high sensing performance making it a potential biosensor.