In 1905, Einstein proposed the photon theory of light. According to this, light consists of discrete packets of energy called photons. His work on the photoelectric effect introduced us to wave ...

Researchers in Birmingham have created the first image of a photon, a lemon-shaped particle of light emitted from the surface of a nanoparticle. The theory that made this image possible ...

From high-speed communication to quantum computing and sensing, the detection, transmission, and manipulation of light ...

A new theory, that explains how light and matter interact at the quantum level has enabled researchers to define for the first time the precise shape of a single photon. Disclaimer: AAAS and ...

A team of physicists affiliated with multiple institutions in China has measured a pulse of light in 37 dimensions. In their ...

One recent experiment backs up Minkowski's answer — but still may not prove Abraham wrong. One might expect that the momentum of a photon, under almost any conditions, would no longer be a ...