Resonance Secondary Radiation enhanced by quadrupole mode of plasmonic arrays

In this paper, the Resonance Secondary Radiation (RSR), the joined action of the Raman Resonance and Fluorescence emission is described. The observed enhancement of the RSR signal is caused by the quadrupole mode of the plasmonic resonance of gold nanotriangles arrays. The material used in this study has been designed based on two separate nanoscale engineering processes by combining two different materials (oligonucleotides and colloidal arrays) at different length scales. The control of the emission by the plasmonic resonance is demonstrated and thoroughly investigated using extinction, steady state and time-resolved Fluorescence spectroscopy.