Shadows are a natural consequence of opaque walls in an illuminated Universe. Light shines; photons travel until they hit an ...

Can light itself cast a shadow? It may sound like a philosophical riddle, but researchers have found that under certain ...

This could enable new tech for controlling light with light, opening doors to advanced fabrication, imaging, and illumination ...

After discussing the quirks in 3D modeling software, where a laser beam is treated as a solid object that can cast a shadow, ...

Researchers create a visible shadow using only a laser beam, an achievement that seemingly defies conventional physics.

A new experiment has demonstrated something that sounds physically impossible – light itself casting a shadow. It turns out ...

In a recent study, researchers from the University of Ottawa have demonstrated a remarkable new phenomenon: a laser beam ...

To ask if a beam of light can make a shadow sounds like a sort of Zen paradox, but physicists have demonstrated the ...

The interaction between the two light sources created a shadow on a screen that was visible as a dark area where the green laser blocked the blue light.

The green laser acts like an ordinary object while the blue laser acts like illumination. The interaction between the two light sources created a shadow on a screen that was visible as a dark area ...

However, such systems cannot match the small size and low-cost benefits provided by semiconductor laser diodes that directly emit green light. The first attempts to fabricate blue and green diode ...