天光一号打靶聚焦系统的研制
Development of the focus system for HeavenⅠ
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摘要: 介绍了在天光一号MOPA光学角多路系统中,将6束KrF准分子激光引入靶室的方法以及聚焦系统的研制。用紫外CCD相机测得6束激光聚到平面靶上的焦斑直径为290μm,靶上的功率密度达到8×1012 W/cm2。Abstract: This paper introduces the method of guiding the six KrF laser beams into target chamber and the development of focus system in MOPA angular multiplex system for HeavenⅠ. The six beams are focused to the vacuum target chamber by six planeconvex lenses. The focal spot on the target is measured by UV CCD camera, the diameter of the focal spot of six beams is 290μm, the focusing power density on the target is 8×1012W/cm2.
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Key words:
- excimer laser /
- coding /
- decode /
- focal spot
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