Closing the green gap Series of visible-light colours generated by a microring resonator. (Courtesy: S Kelley/NIST) On-chip lasers that emit green light are notoriously difficult to make. But ...

people in a forest illuminated by laser lights during a laser party in a forest near Bucharest May 14, 2011. A video of green lasers shooting down from the sky over Hawaii was... Pictured here ...

Astronomers in Japan believe green laser-lights spotted over Hawaii last month were beamed down by a Chinese weather satellite. National Astronomical Observatory of Japan posted video online of a ...

"the lights are thought to be from a remote-sensing altimeter satellite ICESat-2," a US-operated device. The US-owned satellite was capable of producing similar green laser beams; however ...

Scientists from the National Institute of Standards and Technology (NIST) have addressed the long-standing “green gap” by modifying a tiny optical component, a ring-shaped microresonator ...

This was then lit up side-on by a blue laser, so the green light ends up blocking some of the blue light, projecting its outline on a screen. The team says this projection meets a few criteria of ...

In simple terms, the green laser acted more like an object, not a beam of light, creating what by all accounts could be described as a shadow. The researchers suggest this is because of "optical ...

DC-area residents living along the river might have caught a glimpse of the latest step in the response effort overnight Friday: A green laser projected ... LiDAR—which stands for “light detection and ...