Figure 7

Plasmon coupling in nanorod dimer. (a) Schematic drawings of a coupled-dipole nanoantenna made of two plasmonic nanorods with a small gap and its mechanical analog, a coupled mechanical oscillator. (b) Energy-level diagram and simulated near-field intensity spectra for 30 nm high, 50 nm wide and 110 nm long symmetric two-nanorod antennas with 6 nm (blue dashed) and 16 nm (green solid) gap, as well as single-nanorod antennas with the same dimensions (black dotted) (From Ref. [90]).

Plasmon coupling in nanorod dimer. (a) Schematic drawings of a coupled-dipole nanoantenna made of two plasmonic nanorods with a small gap and its mechanical analog, a coupled mechanical oscillator. (b) Energy-level diagram and simulated near-field intensity spectra for 30 nm high, 50 nm wide and 110 nm long symmetric two-nanorod antennas with 6 nm (blue dashed) and 16 nm (green solid) gap, as well as single-nanorod antennas with the same dimensions (black dotted) (From Ref. [90]).