Laser Flashes: Follow The Bouncing Light...

NONCONFORMISTS, IT'S SAID, PREFER BOW TIES. IF SO, the shape that light traces in the latest semiconductor laser couldn't be more suitable. The bow-tie laser breaks almost all the rules. The laser is a disk, not a rod, and its light caroms around the inside of a curving periphery. In a normal laser, the light bounces back and forth between the straight ends of a semiconductor rod.

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