Gap Nanoantennas toward Molecular Plasmonic Devices
Figure 11
(a) Fluorescence image of a nanoantenna array with low concentration of perylene molecules. Bright spots indicate the positions of nanoantennas. First two rows and the lowest row are monomer antennas, while the middle three rows are dimer antennas. (b) Fluorescence spectra for eight dimer positions and one monomer position from the image in (a). The spectra with red lines correspond to red-encircled spots in the image, blue curves to the blue-encircled spots, and the green curve to the monomer position. The black curve indicates a typical perylene fluorescence spectrum recorded for a single molecule outside the nanoantenna array.
