A massive green and blue laser beam was spotted in the San Francisco sky earlier this week, and despite plenty of speculation online, no one seemed to know much about its purpose or origin – until now ...

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 illuminating ...

Light's shadow: 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 ...

After a test run with confusingly coincidental origins, a massive blue laser will once again light up Grace Cathedral this month. Illuminate — the arts nonprofit that lit up the Bay Bridge — and the ...

Turin, Italy-based laser module manufacturer Convergent Photonics is developing new sources for high-power industrial and mid-power medical laser applications thanks to the introduction of a new ...

Researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a shadow, opening new possibilities for technologies that could use a laser beam to control ...