Perhaps one of the most famous experiments in physics has been giving us the wrong message all these years. For nearly two ...

A single-photon detector (SPD) is sensitive to incidence of individual quanta of light and has many applications in photonics, such as fluorescence measurements, laser ranging, optical time-domain ...

"Dark photon" theory says light's interference patterns may emerge from quantum particles, not waves, upending centuries of ...

A new discovery shows that messy, stray light can be used to clean up quantum systems instead of disrupting them. University ...

Photon purity is more than a technical detail. In photonic quantum computing, orderly single-photon streams are easier to ...

A photon was apparently detected in two places at once in a twist on the classic double-slit experiment, but many physicists ...

Does the universe notice that we're paying attention to a quantum experiment? The answer goes against everything we thought we knew.

Researchers at the University of Iowa have identified a new way to "purify" photons, a development that could improve both the performance and ...

Laser spectroscopy is a powerful tool for atmospheric gas analysis, yet traditional methods face challenges due to atmospheric turbulence and significant energy loss. While dual-comb spectroscopy ...