强激光与粒子束, 2003, 15 (6): 570, 网络出版: 2006-04-28
利用"神光-Ⅱ"激光装置多路光束叠加直接驱动下的冲击波平面性及稳定性
Planarity and stability of shock driven directly by multi-beam laser from "Shenguang-Ⅱ" laser facility
冲击波 平面性 稳定性 状态方程 列阵透镜 斜面靶 Shock wave Flatness Stability Laser equation of state Lens-array Inclined-plane target
摘要
利用"神光-Ⅱ"的3路基频光输出及小透镜列阵束匀滑技术,通过优化设计和合理地选择光路组合,实现了多路叠加斜入射的驱动激光, 在靶材料中产生一个650～750μm范围内平面性良好的冲击波,有效地提高了"神光-Ⅱ"输出光束的利用率.同时,利用斜面靶进行的冲击稳定性实验表明,在靶面功率密度分别为3.26×1014及2.56×1014W/cm2时,冲击波至少在28.38～55.82和22.13～35.07μm的Al样品厚度内是稳定传播的.
Abstract
On the basis of the three-beam output of basic frequency from Shenguang-II laser facility and beam smoothing technology of lens-array, the shock wave with a better planarity in ranged 650-750μm the target was created after optimum design and rational combination for laser beam. Then the efficiency of output beams from 'Shenguang-II' laser facility had been raised. And the shock stability experiment with the inclined-plane target indicated that the shock wave steadily propagated in the Al target of thickness of about 28.38-55.82 μm and 22.13-35.07 μm under the power density of 3. 26 × 1014 W/cm2 and 3.11× 1014W/cm2 respectively.
傅思祖, 黄秀光, 吴江, 马民勋, 何钜华, 叶君健, 顾援. 利用"神光-Ⅱ"激光装置多路光束叠加直接驱动下的冲击波平面性及稳定性[J]. 强激光与粒子束, 2003, 15(6): 570. 傅思祖, 黄秀光, 吴江, 马民勋, 何钜华, 叶君健, 顾援. Planarity and stability of shock driven directly by multi-beam laser from "Shenguang-Ⅱ" laser facility[J]. High Power Laser and Particle Beams, 2003, 15(6): 570.
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