"Firstly, we use laser light to cool atoms to temperatures ... Cooper et al, Graph states of atomic ensembles engineered by photon-mediated entanglement, Nature Physics (2024).

The detection of light at the single-photon level is important for tasks ranging from fluorescence imaging to quantum information processing, reports Neil Savage. High-sensitivity detectors that ...

Photon upconversion involves a series of non-linear optical ... and deeper tissue penetration due to their ability to convert near-infrared light to visible or ultraviolet light. These properties make ...