Physicists in Germany have generated what they call a "special" state of matter, using a three-dimensional optical interference pattern. Turning up the intensity of this pattern created a gaseous ...

Optical frequency combs—laser sources that emit evenly spaced colors of light—are foundational, ubiquitous tools for precision measurement, found in optical clocks, gas-sensing spectrometers, and ...

Twisting laser patterns into a corkscrew-like pattern, rather than sending the light beams in a line, promises to relieve some data gridlock, say scientists A bottleneck in data rates is coming, some ...