Shadows have been integral to humanity’s exploration of light and its properties. From their depiction in ancient shadow ...

“Our demonstration of a very counter-intuitive optical effect invites us to reconsider our notion of shadow.” Researchers showed that a laser beam can sometimes act like a solid object and cast a ...

Can light cast a shadow? It sounds like a tricky riddle, but researchers have shown that, under special conditions, a laser ...

In a recent study, researchers from the University of Ottawa have demonstrated a remarkable new phenomenon: a laser beam casting a visible shadow. Led by Jeff Lundeen, Associate Professor in the ...

The result is a darker area that appears as a shadow of the green laser beam. Researchers showed that a laser beam can sometimes act like a solid object and cast a shadow that is visible to the naked ...