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短脉冲激光诱导薄膜损伤的等离子体爆炸过程分析

夏志林 郭培涛 薛亦渝 黄才华 李展望

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短脉冲激光诱导薄膜损伤的等离子体爆炸过程分析

夏志林, 郭培涛, 薛亦渝, 黄才华, 李展望

Investigation of the plasma bursting process in short pulsed laser induced film damage

Xia Zhi-Lin, Guo Pei-Tao, Xue Yi-Yu, Huang Cai-Hua, Li Zhan-Wang
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  • 短脉冲激光诱导薄膜材料损伤过程的研究通常止于薄膜材料发生喷溅.超热喷溅物质吸收剩余激光脉冲能量将形成剧烈的等离子体爆炸过程.采用两步数值计算方法处理等离子体微滴的爆炸过程,即在每一个数值计算时间步长内,将爆炸过程分为两步,第一步处理微滴的绝热膨胀及裂解过程;第二步处理微滴对激光脉冲能量的吸收过程.有效地将微滴吸收激光能量的物理学过程与爆炸动力学过程耦合到一起.分析了喷溅物质微滴在剩余激光脉冲作用下,其半径、膨胀(加)速度、裂解(加)速度、电子及离子的密度与温度等参量随时间变化的演化情况.结果表明:材料喷溅
    Investigations on the interaction of short pulsed laser with optical films usually terminate at the ejection of film material. The plasma bursting process will happen, because the superhot ejection will absorb the remainder of laser energy. A two-steps numerical method has been used to deal with this process. In every computation time-step, two phases are used: the first one is the adiabatic expansion and cracking phase; the second one is the phase of absorbing laser energy. By this method, the energy absorption process and the bursting process are effectively coupled. For the thermodynamic parameters of the plasma micro-droplet, such as the radius, expansion speed and acceleration cracking speed and acceleration, densities and temperatures of electronic and ionic systems have been investigated. The results revealed that: the ejection will be atomized to micro-droplets in the early stage, and expansion dominates the latter part. The cracking velocity is cyclic, and the expansion velocity increases all the while. In specific cases, the expansion process may keep a dynamic stable state after the atomization. But it is difficult for this dynamic stable state to form.
    • 基金项目: 国家自然科学基金(批准号:10974150和10804090)资助的课题.
    [1]

    [1]Xia Z L,Shao J D,Fan Z X,Wu S G 2006 High Power Laser and Particle Beams 18 575 (in Chinses) [夏志林、邵建达、范正修、吴师岗 2006 强激光与粒子束 18 575]

    [2]

    [2]Xia Z L,Fan Z X,Shao J D 2006 Acta Phys. Sin. 55 3007 (in Chinese) [夏志林、范正修、邵建达 2006 物理学报 55 3007]

    [3]

    [3]Jasapara J,Nampoothiri A V V,Rudolph W 2001 Phys. Rev. B 63 045117

    [4]

    [4]Mero M,Liu J,Rudolph W 2005 Phys. Rev. B 71 115109

    [5]

    [5]Ditmire T,Donnelly T,Rubenchik A M,Falcone R W, Perry M D 1996 Phys. Rev. A 53 3379

    [6]

    [6]Ditmire T,Zweiback J, Yanovsky V P, Cowan T E, Hays G, Wharton B 1999 Nature 398 489

    [7]

    [7]Krainov V P,Smirnov M B 2002 Phys. Rep. 370 237

    [8]

    [8]Ditmire T, Gumbrell E T, Smith R A, Djaoui A, Hutchinson M H R 1998 Phys. Rev. Lett. 80 720

    [9]

    [9]Kundu M, Bauer D 2006 Phys. Rev. Lett. 96 123401

    [10]

    ]Mulser P,Kanapathipillai M,Hoffmann D H 2005 Phys. Rev. Lett. 95 103401

    [11]

    ]Taguchi T,Antonsen T M, Milchberg H M 2004 Phys. Rev. Lett. 92 205003

    [12]

    ]Du D,Liu X,Korn G,Squier J,Mourou G 1994 Appl. Phys. Lett. 64 3071

    [13]

    ]Kaiser A,Rethfeld B,Vicanek M,Simon G 2000 Phys. Rev. B 61 11437

    [14]

    ]Yi Y G,Zheng Z J,Yan J,Li P,Fang Q Y,Qiu Y B 2002 Acta Phys. Sin. 51 2740(in Chinese) [易有根、郑志坚、颜军、李萍、方泉玉、邱玉波 2002 物理学报 51 2740]

    [15]

    ]ShiY L,Dong C Z,Zhang D H,Fu Y B 2008 Acta Phys. Sin. 57 88 (in Chinese) [师应龙、董晨钟、张登红、符彦飙 2008 物理学报 57 88]

    [16]

    ]Zhang J Y,Zhang Z J,Yang G H,Yang J M,Ding Y N,Wei M X,Li J 2006 High PowerLaser and Particle Beams 18 1375 (in Chinese)[张继彦、郑志坚、杨国洪、杨家敏、丁耀南、韦敏习、李军 2006 强激光与粒子束 18 1375]

    [17]

    ]Xia Z L,Shao J D,Fan Z X 2006 Chinese Journal of Materials Research 20 581 (in Chinese) [夏志林、邵建达、范正修 2006 材料研究学报 20 581]

  • [1]

    [1]Xia Z L,Shao J D,Fan Z X,Wu S G 2006 High Power Laser and Particle Beams 18 575 (in Chinses) [夏志林、邵建达、范正修、吴师岗 2006 强激光与粒子束 18 575]

    [2]

    [2]Xia Z L,Fan Z X,Shao J D 2006 Acta Phys. Sin. 55 3007 (in Chinese) [夏志林、范正修、邵建达 2006 物理学报 55 3007]

    [3]

    [3]Jasapara J,Nampoothiri A V V,Rudolph W 2001 Phys. Rev. B 63 045117

    [4]

    [4]Mero M,Liu J,Rudolph W 2005 Phys. Rev. B 71 115109

    [5]

    [5]Ditmire T,Donnelly T,Rubenchik A M,Falcone R W, Perry M D 1996 Phys. Rev. A 53 3379

    [6]

    [6]Ditmire T,Zweiback J, Yanovsky V P, Cowan T E, Hays G, Wharton B 1999 Nature 398 489

    [7]

    [7]Krainov V P,Smirnov M B 2002 Phys. Rep. 370 237

    [8]

    [8]Ditmire T, Gumbrell E T, Smith R A, Djaoui A, Hutchinson M H R 1998 Phys. Rev. Lett. 80 720

    [9]

    [9]Kundu M, Bauer D 2006 Phys. Rev. Lett. 96 123401

    [10]

    ]Mulser P,Kanapathipillai M,Hoffmann D H 2005 Phys. Rev. Lett. 95 103401

    [11]

    ]Taguchi T,Antonsen T M, Milchberg H M 2004 Phys. Rev. Lett. 92 205003

    [12]

    ]Du D,Liu X,Korn G,Squier J,Mourou G 1994 Appl. Phys. Lett. 64 3071

    [13]

    ]Kaiser A,Rethfeld B,Vicanek M,Simon G 2000 Phys. Rev. B 61 11437

    [14]

    ]Yi Y G,Zheng Z J,Yan J,Li P,Fang Q Y,Qiu Y B 2002 Acta Phys. Sin. 51 2740(in Chinese) [易有根、郑志坚、颜军、李萍、方泉玉、邱玉波 2002 物理学报 51 2740]

    [15]

    ]ShiY L,Dong C Z,Zhang D H,Fu Y B 2008 Acta Phys. Sin. 57 88 (in Chinese) [师应龙、董晨钟、张登红、符彦飙 2008 物理学报 57 88]

    [16]

    ]Zhang J Y,Zhang Z J,Yang G H,Yang J M,Ding Y N,Wei M X,Li J 2006 High PowerLaser and Particle Beams 18 1375 (in Chinese)[张继彦、郑志坚、杨国洪、杨家敏、丁耀南、韦敏习、李军 2006 强激光与粒子束 18 1375]

    [17]

    ]Xia Z L,Shao J D,Fan Z X 2006 Chinese Journal of Materials Research 20 581 (in Chinese) [夏志林、邵建达、范正修 2006 材料研究学报 20 581]

计量
  • 文章访问数:  6283
  • PDF下载量:  628
  • 被引次数: 0
出版历程
  • 收稿日期:  2008-10-06
  • 修回日期:  2009-09-16
  • 刊出日期:  2010-05-15

短脉冲激光诱导薄膜损伤的等离子体爆炸过程分析

  • 1. 武汉理工大学材料科学与工程学院金属系,武汉 430070
    基金项目: 国家自然科学基金(批准号:10974150和10804090)资助的课题.

摘要: 短脉冲激光诱导薄膜材料损伤过程的研究通常止于薄膜材料发生喷溅.超热喷溅物质吸收剩余激光脉冲能量将形成剧烈的等离子体爆炸过程.采用两步数值计算方法处理等离子体微滴的爆炸过程,即在每一个数值计算时间步长内,将爆炸过程分为两步,第一步处理微滴的绝热膨胀及裂解过程;第二步处理微滴对激光脉冲能量的吸收过程.有效地将微滴吸收激光能量的物理学过程与爆炸动力学过程耦合到一起.分析了喷溅物质微滴在剩余激光脉冲作用下,其半径、膨胀(加)速度、裂解(加)速度、电子及离子的密度与温度等参量随时间变化的演化情况.结果表明:材料喷溅

English Abstract

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