For the experiment, a high-power green laser was directed through ruby cube and illuminated with a blue laser from the side. The green laser increases the optical absorption of the blue illuminating ...

Nonlinear interactions between light and matter are at the heart of some of the most powerful tools in modern optics, but ...

Flashes of femtosecond laser light, lasting just a few trillionths of a second, have made it possible to observe new magnetic ...

Waves of light and sound interact to drive electronic and structural changes in a perovskite crystal. At the atomic scale, ...

Can light itself cast a shadow? It may sound like a philosophical riddle, but researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a shadow. The ...

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 ...