Stable Fano-like plasmonic resonance: its impact on the reversal of far- and near-field optical binding force

Hamim Mahmud Rivy,M R C Mahdy,Nabila Masud,Ziaur Rahman Jony,Saikat Chandra Das

Figure 8. The top view of electric field distribution for cube-, cylinder-, ring- and sphere-shaped nanoparticle tetramers at dark, Fano-like deep and bright resonant modes for far-field and near-field configurations. The first, second and third rows, respectively, show the dark, Fano-like deep and bright resonant modes for cube-, cylinder-, ring- and sphere-shaped nanoparticle tetramers. Table 2 shows the wavelength at which bright, dark and Fano-like deep resonance occur for near-field and far-field configurations. The far-field electric field distribution shows circulating field behavior, but the electric field distribution shows no circulating behavior. The vector diagram of the electric field distribution is obtained directly from the simulation results found in the commercial software Lumerical FDTD [42].