上海光机所介绍(英文)    上海光机所介绍(中文)

Faster, Less Expensive Laser Glass ProductionLaser glass is the heart of the NIF laser system; it's the material that amplifies the laser light to the very high energies required for experiments. NIF's laser glass is a phosphate glass that contains a chemical additive with atoms of neodymium. The NIF laser system uses about 3,070 large plates of laser glass. Each glass plate is about three feet long and about half as wide. If stacked end-to-end, the plates would form a continuous ribbon of glass 1.5 miles long. To produce this glass quickly enough to meet construction schedules, NIF uses a new production method developed in partnership with two companies—Hoya Corporation, USA and Schott Glass Technologies, Inc.—that continuously melts and pours the glass. Once cooled, the glass is cut into pieces that are polished to the demanding NIF specifications.

聚变能(fusion)
Large, Rapid-Growth CrystalsNIF's KDP crystals serve two functions: frequency conversion and polarization rotation . The development of the technology to quickly grow high-quality crystals was a major undertaking and is perhaps the most highly publicized technological success of the NIF project.NIF laser beams start out as infrared light, but the interaction of the beams with the fusion target is much more favorable if the beams are ultraviolet. Passing the laser beams through plates cut from large KDP crystals converts the frequency of their light to ultraviolet before they strike the target. The rapid-growth process for KDP, developed to keep up with NIF's aggressive construction schedule, is amazingly effective: Crystals that would have taken up to two years to grow by traditional techniques now take only two months. In addition, the size of the rapid-growth crystals is large enough that more plates can be cut from each crystal, so a smaller number of crystals can provide NIF with the same amount of KDP.