Abstract: The present disclosure provides a method of fabricating a single photon source. The method comprises the steps of providing a substrate with a visual feature and providing a plurality of particles positioned on the substrate. The particles are positioned in the proximity of the visual feature and include a particle that is arranged for single photon emission in response to a suitable excitation. The method also includes characterising photon emission from the particles to identify the single photon emission and thereby identifying an approximate location of the particle arranged for single photon emission relative to the visual feature. Further, the method includes imaging the visual feature and an area in the proximity of the visual feature and thereby imaging the particle arranged for single photon emission.

Abstract: The present disclosure provides a method of forming a single photon emission system and a single photon emission system. The method comprises providing a single photon source arranged for single photon emission at a predetermined wavelength in response to a suitable excitation. The single photon source comprises a particle for generating the single photons. The method also comprises providing an optical pump source arranged to provide the suitable excitation in the form of suitable photons. In addition, the method comprises adjusting a pathway of the photons provided by the optical pump source and a position of the single photon source relative to each other so that the single photon source is located at a predetermined location relative to the pathway of the photons provided by the optical pump source and in use single photons are emitted by the single photon source.