Abstract: A single photon source device is proposed. The device may include a reflection layer, an insulating layer disposed on the reflection layer, and a single emitter configured to emit a single photon. The device may also include a first solid immersion lens portion disposed on the insulating layer to surround the single emitter, and a second solid immersion lens portion disposed on the insulating layer to surround the first solid immersion lens portion.

Abstract: The present invention relates to a single photon light source capable of generating single photons with a high repetition rate and a high collection efficiency by positioning an emitter in a nanogap of a nano-antenna including a metal nanoparticle and a metal layer, and by controlling Purcell enhancement in the nanogap. The single photon light source of the present invention is easy to manufacture with low manufacturing costs due to its simple structure and has excellent light collection efficiency by emitting single photons vertically upward through an optical antenna structure of a nano-antenna. In addition, single photons may be generated by applying various emitters to a nano-antenna, a high production yield is obtained due to the wide bandwidth, and operation may be possible at room temperature at various wavelengths.

Abstract: A single photon source device is proposed. The device may include a reflection layer including a base portion and a recessed portion having a concave shape that is recessed from the base portion, a single emitter disposed within the recessed portion of the reflection layer and configured to emit a single photon, a solid resonator configured to fill the recessed portion to surround the single emitter, and a solid immersion lens portion disposed on the solid resonator to surround the solid resonator.