paves the way for surprising applications in manipulating light with light. A visible "laser shadow" appears as a dark line against the blue background. Credit: R. A. Abrahao et al. The scientists ...

Can light itself cast a shadow? It may sound like a philosophical riddle, but researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a shadow.

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. It met all the criteria for a shadow ...

In an advance for the control and manipulation of light, researchers from the University of Ottawa have demonstrated a laser beam casting a visible shadow. Led by Jeff Lundeen, Associate Professor in ...

For the experiment, a high-power green laser was directed through ruby cube and illuminated with a blue laser from the side. The green laser increases the optical absorption of the blue ...

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

Since the whole idea of ‘visible light’ pertains to a small ... called a transmission hologram, as it requires a laser light to illuminate the holographic film from behind to recreate the ...

The only clinic-grade cosmetic laser that's been given the thumbs up by the FDA for at-home use, while those LED devices are busy scattering their light all over the place, the LYMA Laser is ...

Below, you’ll find gift ideas that can fit a variety of budgets and needs, whether you’re looking for a stocking stuffer or ...

More than 99% of Americans live under skies polluted by light. But dark skies at the Grand Canyon and more than 145 other ...

The giant holes in galaxies’ centers shouldn’t be able to combine, yet combine they do. Scientists suggest that an unusual ...