Can light itself cast a shadow? It may sound like a philosophical riddle, but researchers have found that under certain ...

When two beams of laser light are crossed in just the right way, the primary beam is unable to pass through the secondary – ...

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 ...