A group of scientists have created a high-power laser beam that they claim lightning will follow for a period of time. Physicists have published a new study in the scientific journal Nature Photonics ...

When the green laser encounters atoms along its path through the crystal, it gives the electrons in those atoms a bit of extra energy. In their high-energy state, those electrons can absorb blue light ...

Researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a shadow, opening new possibilities for technologies that could use a laser beam to control ...