In a lab at Osaka University, physicist Yoshiki Nakata and his colleagues fired a pulsed laser through a stack of three ...

Physicists have developed a spectral-filtering technique that strips away unwanted extra photons from quantum light sources, ...

An introduction to modern theories of the universe and its evolution. Topics include naked eye observation, the solar system, stars, galaxies, and cosmology. Emphasis will be placed on the scientific ...

A Scottish startup developing free-space optics completed tests where it used a crystal-based laser to transmit data across ...

Everything on the electromagnetic spectrum has some properties of both waves and particles, but it’s difficult to imagine a ...