05.12.2006, 15:43
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Zitat:Lasers Blowing Up
There's a bit of a magic number, when it comes to lasers. A threshold at which beams of coherent light stop being tools for welding or analysis... and start becoming weapons. That level is generally considered to be around 100 kilowatts.
For years, solid state, electric lasers could only operate at a tiny fraction of that 100 kw mark. But the beams are getting stronger. Take Bob Yamamoto's Solid State Heat Capacity Laser, at Lawrence Livermore National Lab. In March, 2005, it hit 45 kw, a new record -- and more than triple what it could do just three years before. ...