Chiral Emission into Nanophotonic Resonators

• DOI: 10.1021/acsphotonics.8b01555
• Publication Date: 2019-02-27T01:33:54Z
• Authors: Diego Martin-Cano; Harald R. Haakh; Nir Rotenberg
• Keywords: Nanophotonics; Purcell effect

Chiral emission, where the handedness of a transition dipole determines direction in which photon is emitted, has recently been observed from atoms and quantum dots coupled to nanophotonic waveguides. Here, we consider case chiral light–matter interactions resonant structures, deriving closed-form expressions for fundamental electrodynamic quantities that describe these interactions. We show how parameters such as position dependent, directional Purcell factors mode volume can be calculated using computationally efficient two-dimensional eigenmode simulations. As an example, calculate prototypical ring resonator with geometric footprint only 4.5 μm2, observing perfect directionality simultaneous enhancement upward 400. The ability determine properties interfaces crucial if they are form elements circuits networks.