In a new study, researchers at Osaka University have created the world's first compact, tunable-wavelength blue semiconductor ...

Researchers from Japan have developed tuneable blue semiconductor lasers initiating practical far-UV light sources.

Brookhaven researchers have revealed that a laser beam can cast a shadow through nonlinear optical processes, challenging ...

When the green laser enters the ruby, it locally changes the material response to the blue wavelength. The green laser acts like an ordinary object while the blue laser acts like illumination.

Can light itself, perhaps from a laser, cast a shadow? It might seem like a trick question, but the answer to this is "yes." ...

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

In a new study, researchers used a ruby crystal and specific laser wavelengths to show that a laser beam can block light and ...

In this experiment, the green laser beam raised the absorption rate of blue light in the ruby crystal ... involve exploring other materials and wavelengths to identify additional ways to achieve ...