Cooperative interactions between nano-antennas in a high-Q cavity for unidirectional light sources

摘要

Scanning electron micrograph (SEM, angled view) showing the geometry, consisting of two radially oriented aluminium nanorods on the perimeter of a silicon nitride microdisk. Inset: zoomed-out SEM of a full microdisk cavity. The dark angular pattern marks the contact with the silicon support pedestal. Sketch of the geometry, where the antennas are separated by a subtended angle Δ . One antenna is driven by a spontaneous emitter (red dot). , Sketch of the symmetric and antisymmetric hybrid modes (mirror plane indicated as black line).