Chasing Fusion

By John Lippert - 2013-05-03T11:09:30Z

Photograph by Jake Stangel/Bloomberg Markets

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11. Optical Lenses

Building the world's biggest laser means that NIF scientists had to invent new methods for manufacturing large and durable optical lenses. Shown here is the equipment that workers use to dip the lenses in vats of acid to remove impurities. A lens is visible in the small rack shown at on the right.