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 ...

LED light therapy has gained so much buzz in recent years—and now, many skincare brands are releasing their own version for ...

The technique works because the green laser (wavelength 532 nanometers) changes the way the crystal responds to some other ...

With the help of a ruby cube and two laser beams, researchers made one ray of light cast a shadow when illuminated by the ...

This could enable new tech for controlling light with light, opening doors to advanced fabrication, imaging, and illumination ...

Shadows are a natural consequence of opaque walls in an illuminated Universe. Light shines; photons travel until they hit an ...

The green laser acts like an ordinary object while the blue laser acts like illumination. The interaction between the two light sources created a shadow on a screen that was visible as a dark area ...

The interaction between the two light sources created a shadow on a screen that was visible as a dark area where the green laser blocked the blue light.

Researchers showed that a laser beam can sometimes act like a solid object and cast a shadow that is visible to the naked eye. In the picture, the shadow appears as the horizontal line traversing the ...

A new experiment has demonstrated something that sounds physically impossible – light itself casting a shadow. It turns out ...