Blue lasers, lasers that emit a light beam with a wavelength between 400 nm and 500 nm, are key components of various ...

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

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 ...

In a discovery that challenges conventional optics, scientists have managed to make a laser beam cast its own shadow—a feat ...

Researchers showed that a laser beam can sometimes act like a solid object and cast a shadow that is visible to the naked eye. In the picture, the shadow appears as the horizontal line traversing the ...

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.

Left: the shadow appears as the horizontal line traversing the blue background; Right: the experimental setup. R. A. Abrahao, H. P. N. Morin, J. T. R. Pagé, A ...

In a discovery that challenges conventional optics, scientists have managed to make a laser beam cast its own shadow—a feat previously thought impossible, as light typically passes through other ...

In a new paper published today in the journal Optica, physicists describe how a laser beam can be made to cast a shadow that behaves as any other ordinary shadow. “Laser light casting a shadow was ...

Can light cast a shadow? It sounds like a tricky riddle, but researchers have shown that, under special conditions, a laser ...

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.

In their high-energy state, those electrons can absorb blue light from the second laser. The green laser beam thus behaves like an object, blocking the blue light and casting a dark line across ...