High Purcell Factor Single-Photon Emitter based on Extreme Dielectric-Confinement GaAs-on-Insulator Waveguides

Abstract

We theoretically investigate the potential of the extreme mode-confinement waveguides for single-photon sources. Confining light far below the diffraction limit in a V-groove GaAs-on-insulator waveguide, we enhance the Purcell factor by a factor of eight.