The green laser increases the optical absorption of the blue illuminating laser beam, creating a matching region in the illuminating light and creating a darker area that appears as a shadow of ...

Scientists have shown that laser light, under certain conditions, can behave like an object and cast a shadow.

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

In a new study, researchers used a ruby crystal and specific laser wavelengths to show that a laser beam can block light and ...

By passing a high-energy photon from a blue laser through a nonlinear crystal ... it may be possible to encode multiple ...