Gap Nanoantennas toward Molecular Plasmonic Devices

Figure 2

Theoretical and experimental spectra of the electric field and extinction for dimers (particles with 100 nm diameter) with 30 nm gap. The (a) to (b) labels indicate the excitation parameters where resonances occur. These are then used in the corresponding insets to display the field distribution under these excitation conditions. The insets (a) to (c) depict the total field fingerprint for each spectral peak (black arrows show the polarization state), to illustrate the resonances and local field enhancement around the dimers.