-
构建了一种基于光纤传输高功率激光的飞片发射系统,并测试了飞片速度.飞片膜层为三明治结构:铝烧蚀层、氧化铝隔离层和铝飞片产生层.飞片膜层采用磁控溅射技术沉积在玻璃衬底上,总厚度为5.5 m.激光辐照铝膜层产生高温高压等离子体,驱动剩余膜层产生高速飞片,速度达数km/s.同时,实验研究了光纤传能系统的输出激光空间分布特性和传输激光能量容量,它们决定了飞片的平面性和最大速度.光纤端面损伤是限制光纤传输激光能量容量的关键因素,光纤端面通过精密机械抛光和激光预处理可以获得理想的抗激光损伤能力.采用基于光纤阵列探针的时间序列测试技术获得了飞片的平均速度,并评估了飞片的平面性.采用搭建的基于光纤传输高功率激光的飞片发射系统获得了速度达1.7 km/s、直径接近1 mm的高速飞片.A system for the launch of hypervelocity flyer plates is developed, characterized and applied. Laser-driven flyers are launched from substrate backed aluminum-alumina- aluminum sandwiched films. A laser-induced plasma is used to drive flyers with a thicknesses of a 5.5 m and a diameter of less than 1 mm, and typically, the flyer plates can achieve velocities of a few kilometers per second. These flyer plates have several applications ranging from micrometeorite simulation to laser ignition. The flyer plates considered here have three layers: an ablation layer for forming plasma; an insulating layer; and a final thicker layer for forming the final flyer plate. The optical fiber delivery system determines the spatial profile of the laser spot and power capacity. A technique and procedure for coupling high power laser pulse into optical fiber is developed. The surface finish of the fiber is found to be a critical factor. This fiber optic system is successfully used to launch flyer plates. Measurements of the flyer performance including the mean velocities and planarity are made by an optical time-of-arrival (TOA) technique with using an optical fiber array probe. The flyer shows a good planarity and achieves an average velocity of 1.7 km/s. The relationship between flyer velocity and incident laser pulse energy is investigated.
-
Keywords:
- laser-driven flyer /
- laser irradiation /
- optical fiber array probe /
- laser plasma
[1] Roybal R, Tlomark P 1997 Aerospace Industry Analysis Association (AIAA) Report A9741727
[2] [3] Obenschain S P, Lehmberg R H, Ripin B H 1980 Appl. Phys. Lett. 37 903
[4] Krehl P, Schwirzke F, Cooper A W 1975 J. Appl. Phys. 46 4400
[5] [6] Trott W M,Meeks K D 1990 J. Appl. Phys. 67 3297
[7] [8] [9] Paisley D L 1989 Los Alamos National Laboratory Report LA-UR-89-2723
[10] Watson S, Field J E 2000 J. Phys. D: Appl .Phys. 33 170
[11] [12] Bowden M D, Drake R C 2007 Proc. SPIE 6662 66620D-1
[13] [14] Zhao X H, Gao Y, Xu M J, Duan W T,Yu H W 2008 Infrar. Laser Eng. 37 444 (in Chinese)[赵兴海、高 杨、徐美健、段文涛、於海武 2008 红外与激光工程 37 444]
[15] [16] [17] Zhao X H, Hu J P, Gao Y, Ma P 2010 Acta Phys. Sin. 59 3917 (in Chinese)[赵兴海、胡建平、高 杨、潘 峰、马 平 2010 59 3917]
[18] [19] Wang F R, Huang J, Liu H J, Zhou X D, Jiang X D, Wu W D, Zheng W G 2010 Acta Phys. Sin. 59 5122(in Chinese) [王凤蕊、黄 进、刘红婕、周信达、蒋晓东、吴卫东、郑万国 2010 59 5122]
[20] [21] Zhao X H, Gao Y, Xu M J, Duan W T, Yu H W 2008 Acta Phys. Sin. 57 5027(in Chinese)[赵兴海、高 杨、徐美健、段文涛、於海武 2008 57 5027]
[22] Fabbro R, Fournier J, Ballard P 1990 J. Appl. Phys. 68 775
[23] [24] [25] Lawrence R J, Trott W M 1993 Int. J. Impact Eng. 14 439
[26] [27] Gu Y Y, Zhang Y K, Zhang X Q, Shi J G 2006 Acta Phys. Sin. 55 5885 (in Chinese)[顾永玉、张永康、张兴权、史建国 2006 55 5885]
-
[1] Roybal R, Tlomark P 1997 Aerospace Industry Analysis Association (AIAA) Report A9741727
[2] [3] Obenschain S P, Lehmberg R H, Ripin B H 1980 Appl. Phys. Lett. 37 903
[4] Krehl P, Schwirzke F, Cooper A W 1975 J. Appl. Phys. 46 4400
[5] [6] Trott W M,Meeks K D 1990 J. Appl. Phys. 67 3297
[7] [8] [9] Paisley D L 1989 Los Alamos National Laboratory Report LA-UR-89-2723
[10] Watson S, Field J E 2000 J. Phys. D: Appl .Phys. 33 170
[11] [12] Bowden M D, Drake R C 2007 Proc. SPIE 6662 66620D-1
[13] [14] Zhao X H, Gao Y, Xu M J, Duan W T,Yu H W 2008 Infrar. Laser Eng. 37 444 (in Chinese)[赵兴海、高 杨、徐美健、段文涛、於海武 2008 红外与激光工程 37 444]
[15] [16] [17] Zhao X H, Hu J P, Gao Y, Ma P 2010 Acta Phys. Sin. 59 3917 (in Chinese)[赵兴海、胡建平、高 杨、潘 峰、马 平 2010 59 3917]
[18] [19] Wang F R, Huang J, Liu H J, Zhou X D, Jiang X D, Wu W D, Zheng W G 2010 Acta Phys. Sin. 59 5122(in Chinese) [王凤蕊、黄 进、刘红婕、周信达、蒋晓东、吴卫东、郑万国 2010 59 5122]
[20] [21] Zhao X H, Gao Y, Xu M J, Duan W T, Yu H W 2008 Acta Phys. Sin. 57 5027(in Chinese)[赵兴海、高 杨、徐美健、段文涛、於海武 2008 57 5027]
[22] Fabbro R, Fournier J, Ballard P 1990 J. Appl. Phys. 68 775
[23] [24] [25] Lawrence R J, Trott W M 1993 Int. J. Impact Eng. 14 439
[26] [27] Gu Y Y, Zhang Y K, Zhang X Q, Shi J G 2006 Acta Phys. Sin. 55 5885 (in Chinese)[顾永玉、张永康、张兴权、史建国 2006 55 5885]
计量
- 文章访问数: 7376
- PDF下载量: 631
- 被引次数: 0
下载:
