Physicists have seen the light, and it comes in many different colors. By aiming high- and low-frequency laser beams at a semiconductor, the researchers caused electrons to be ripped from their cores, accelerated, and then smashed back into the cores they left behind. This recollision produced multiple frequencies of light simultaneously.
Ripping electrons from their cores: Physicists mix two lasers to create light at many frequencies
28.03.2012 19:28 
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