8路神光Ⅱ装置在基频和三倍频条件下工作研究进展

 简要描述在神光Ⅱ装置上进行的部分物理实验，为神光Ⅱ激光装置提供光学性能指标。神光Ⅱ激光装置已经能在三倍频、外转换效率高于60%的条件下常规输出三倍频能量。穿孔实验表明，蓝光(3w₀)的光束质量，特别是远场旁瓣分布质量，甚至于要好于红光(1w₀光)。用100ps脉冲宽度的红光输出打爆推内爆的氘氚球靶，获得单发最高中子产额4×10⁹个。基频线聚焦打靶，获得类Ni银X光激光饱和输出，并成功应用于激光等离子体密度测量，观测到莫尔条纹移动。

Succ ess ful operation of 8 beam SG-Ⅱlaserfacility for both 1ω0 and 3ω0 output

SG-Ⅱlaser facility has recently been abl e to deliver 3ω0 (blue) light with the outer conversion efficiency of ≥6 0% during its routine operation. The pinhole injection experiment this year indi cated the optical quality of the blue, especially the side lobe distribution, wa s even better than that of the red (1ω0). With the 100ps red light output , DT fuel exploding pusher experiment delivered the maximum neutron yields of 4 ×109 per shot. The red light line focus has led to the Ni like Ag X-ray lase r's saturation and the successful observation of the Moire fringe deflection wh ile the laser was applied to a separated laser plasmas. This paper presents the optical features of SG-Ⅱlaser facility and describes some of the experiments c onducted on the facility.