Fig. 5
From: A single-photon source based on topological bulk cavity
Extraction efficiency of the optimized single-photon source with a reflector. a Schematic of the optimized single photon source with a GaAs/SiO2/Au structure. b Simulated extraction efficiency of the optimized single-photon source as a function of NA. Inset: Angle-resolved far-field |E | 2 distribution of the optimized structure. c Simulated extraction efficiency and Purcell factor of the optimized structure versus emission wavelength. In the simulations, the extraction efficiency is defined as the ratio of the radiated power collected within the NA to the total radiated power in the full solid angle, from a single emitter embedded in the topological cavity
