Rediscovering spontaneous light emission

Berkeley Lab researchers have developed a nano-sized optical antenna that can greatly enhance the spontaneous emission of light from atoms, molecules and semiconductor quantum dots. This advance opens the door to light-emitting ...

Controlled coupling of light and matter

Researchers from Würzburg and London have succeeded in controlling the coupling of light and matter at room temperature. They have published their results in Science Advances.

Quantum-emitting answer might lie in the solution

Tapping into the quantum properties of photons for optoelectronics requires highly efficient light sources. Lead trihalide perovskite nanocrystals exhibit a number of properties that make them promising candidates as light ...

Researchers switch a quantum light source in a superfast way

Scientists from the FOM Foundation, the University of Twente and at the Institute for Nanoscience and Cryogenics in France have shown that light sources which usually emit light randomly can be coaxed to emit an ultrashort ...

Controlling the emission of light? Size matters

In daily life light is often generated by spontaneous emission, for instance, in lighting, in LCD displays, and in DVD players. In this process, an excited quantum emitter, such as an atom, a molecule, or a quantum dot emits ...