Can light itself, perhaps from a laser, cast a shadow? It might seem like a trick question, but the answer to this is "yes." ...

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

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

Researchers used a ruby crystal and specific laser wavelengths to demonstrate that a laser beam could obstruct light and ...

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 ...