Over the past decade, researchers have become good at creating devices that emit single ...

A research team in China has built a quantum dot device that produces photon pairs with record-setting purity, achieving a two-photon fraction of 0.983(1). The work, published in Nature Materials, ...

Fig. 1. a, Conceptual illustration of the strain tunable single-photon source. b, Structure of the integrated FP microcavity and electric field distribution of fundamental mode. c, 3D-FDTD simulation ...

Quantum dots, semiconductor nanostructures exhibiting discrete energy levels, have emerged as quintessential quantum emitters for on‐demand single-photon generation. Their unique confinement ...

Chinese scientists have cracked a long-standing puzzle in quantum optics, creating a tiny device that spits out pairs of ...

Controlling light at the level of individual photons could one day do for quantum networks what switching and routing have done for classical internet infrastructure. To help realize that vision, ...

The new approach uses a purely optical technique called stimulated two-photon excitation to generate streams of photons in different polarization states directly from a quantum dot without requiring ...

The proposed method uses a single rare-earth ion, trapped inside a tapered optical fiber, to directly generate and guide single photons within the fiber, representing a key low-cost component for ...

a, Conceptual illustration of the strain tunable single-photon source. b, Structure of the integrated FP microcavity and electric field distribution of fundamental mode. c, 3D-FDTD simulation design.

Self-assembled semiconductor quantum dots (QDs) represent a three-dimensional confined nanostructure with discrete energy levels, which are similar to atoms. They are capable of producing highly ...