Lasing threshold in the conventional lasers is the minimum input power required to initiate laser oscillation. It has been widely accepted that the conventional laser threshold occurring around a ...

Spontaneous two-photon emission (STPE) refers to a pure quantum mechanical process in which vacuum fluctuations drive the emission consisting of a pair of highly correlated single photons. From the ...

Figure | Operation principle of the monolithic microcavity-metalens interfaces. (a) Schematics of the monolithic microcavity-metalens interface. A QD-micropillar single-photon device emits bright and ...

The concept of quantum entanglement is emblematic of the gap between classical and quantum physics. Referring to a situation in which it is impossible to describe the physics of each photon separately ...

For the first time, researchers in China have demonstrated how quantum dots can be engineered to consistently generate pairs of entangled photons. By carefully tailoring the photonic environment ...

The article was selected as a Featured Article in APL Quantum ("Approaching unity photon collection from NV centers via ultra-precise positioning of nanodiamonds in hybrid nanoantennas"). Diamonds ...