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. That dark line meets all the criteria for a shadow: it was visible by eye ...

"From there, we decided to conduct an experiment to demonstrate the shadow of a laser beam." First, the team shot a high-power green laser through a cube-shaped ruby crystal. They then shot a ...

and it follows the position and shape of the green laser beam. It even packs a maximum contrast of about 22% – equivalent to the shadow a tree casts on a sunny day, the team says. A diagram ...

The team's experimental setup involved shining a green laser beam through a ruby crystal while illuminating it from the side with blue light. This arrangement created a shadow on a surface ...

In their experiment, a powerful green laser beam passed through a ruby crystal, locally altering its response to lateral blue light. The result: a visibly darker region, akin to the shadow of a ...

The green laser beam thus behaves like an object, blocking the blue light and casting a dark line across the screen. —Scientists uncover the secret to building Star Wars-style laser weapons ...

"From there, we decided to conduct an experiment to demonstrate the shadow of a laser beam." To do this, the researchers directed a high-power green laser through a cube made of standard ruby ...