Using a green laser beam, a ruby crystal, and blue light illumination, they demonstrated that light, under specific conditions, could block another light source, creating a visible shadow.

Researchers have engineered a human kidney cell able to produce a directed green laser beam when struck by weak blue light. Don't get your spandex out just yet though -- it might be some years ...

The green laser beam thus behaves like an object, blocking the blue light and casting a dark line across the screen. RELATED STORIES — Next-gen quantum computers could be powered using chip with ...

The green light increases the absorption of the blue beam, creating a darker region that casts the shadow. The researchers measured a maximum contrast of around 22 percent, roughly the equivalent ...

The effect occurs because the green laser increases the optical absorption of the blue illuminating laser beam, creating a matching region in the illuminating light with lower optical intensity.

Laser beam helps deter Canada geese at park in Pennsylvania 01:59. A new high-tech method is keeping Canada geese away from Blawnox Community Park. Canada geese have been around western ...

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 ...