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.

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.

To demonstrate this phenomenon, the researchers conducted an experiment using a ruby crystal cube. They shone a green laser beam through the cube while illuminating it perpendicularly with blue light.

Scientists have ample evidence to prove the Earth is a sphere. But some social media users claim to have devised an experiment showing the earth is flat. The post shows a green laser beam ...

By modifying the optical properties of ruby, the green laser acted like a physical object, while the blue laser served as illumination. The team observed that the laser shadow shared many ...

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 ...