When the green laser encounters atoms along its path through the crystal, it gives the electrons in those atoms a bit of extra energy. In their high-energy state, those electrons can absorb blue light ...

A new Israeli laser weapon has entered active service, highlighting how drone warfare is forcing a rethink of traditional air ...

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 ...

Laser Proximity Sensors use laser beams to detect the presence or absence of objects within a certain range. They are used in security systems, robotics, automation, and industrial processes, where ...

The energy sent is low-intensity, invisible infrared light, which allows ground-based solar projects to generate power even when the sun is not shining. Unlike other concepts, Overview’s wide-beam ...

JERUSALEM – Israel has officially conscripted its new SIGMA 155 self-propelled howitzer and Iron Beam laser system, the ...

Dozens of times over the last decade NASA scientists have launched laser beams at a reflector the size of a paperback novel about 240,000 miles (385,000 kilometers) away from Earth. They announced ...

Scientists get peacock feathers to emit laser light after adding dye and green pulses, revealing surprising biophotonic ...

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 ...