超短超强激光与薄膜靶相互作用中不同价态碳离子的来源

刘梦; 苏鲁宁; 郑轶; 李玉同; 王伟民; 盛政明; 陈黎明; 马景龙; 鲁欣; 王兆华; 魏志义; 胡碧涛; 张杰

doi:10.7498/aps.62.165201

摘要

研究了超短超强激光与不同厚度薄膜Al靶相互作用中靶背法线方向碳离子的最初来源. 通过对比分析碰撞电离率和场致电离率所起的作用, 发现C4+ 及更低价态的碳离子主要由场致电离产生, 而高价态的C5+和C6+ 离子主要来自于超热电子与靶表面的碰撞电离.

关键词:

High charge state carbon ions are observed from the rear surface of thin foil irradiated by intense femtosecond laser pulse at intensities up to 6.4×1018 W/cm2. The origin of the ions is studied by analyzing the basic ionization process occurring at the rear surface. It is shown that the normally dominant ionization process is field ionization by barrier suppression for charge states less than He-like (C4+), while collisional ionization is significant for C5+ and C6+.

Keywords:

作者及机构信息

1.
兰州大学核科学与技术学院, 兰州 730000;

2.
中国科学院物理研究所, 光物理重点实验室, 北京 100190;

3.
上海交通大学物理系, 激光等离子体教育部重点实验室, 上海 200240

基金项目: 国家自然科学基金(批准号: 10925421, 11135012, 10974250, 10935002)资助的课题.

Authors and contacts

1.
School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;

2.
Key Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;

3.
Department of Physics, Shanghai Jiaotong University, Shanghai 200240, China

Funds: Project support by the National Natural Science Foundation of China (Grant Nos. 10925421, 11135012, 10974250, 10935002).

参考文献

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[2]	Clark E L, Krushelnick K, Davies J R, Zepf M, Tatarakis M, Beg F N, Machacek A, Norreys P A, Santala M I K, Watts I, Dangor A E 2000 Phys. Rev. Lett. 84 670
[3]	Roth M, Blazevic A, Geissel M, Schlegel T 2002 Phys. Rev. Spec. Top.: Accel. Beams 5 061301
[4]	Hatchett S P, Brown C G, Cowan T E, Henry E A, Johnson J S 2000 Phys. Plasmas 7 2076
[5]	Hegelich M, Karsch S, Pretzler G, Habs D, Witte K, Guenther W, Allen M, Blazevic A, Fuchs J, Gauthier J C, Geissel M, Audebert P, Cowan T, Roth M 2002 Phys. Rev. Lett. 89 085002
[6]	Korzhimanov A V, Efimenko E S, Golubev S V, Kim A V 2012 Phys. Rev. Lett. 109 245008
[7]	Carrol D C, Tresca O, Prasad R, Romagnani L, Foster P S, Gallegos P, Ter-Avetisyan S, Green J S, Streeter M J V, Dover N, Palmer C A J, Brenner C M, Cameron F H, Quinn K E, Schreiber J, Robinson A P L, Baeva T, Quinn M N, Yuan X H, Najmudin Z, Zepf M, Neely D, Borghesi M, Mckenna P 2010 New J. Phys. 12 045020
[8]	Hegelich B M 2002 Ph. D. Dissertation (Germeny: Ludwig Maximilian Muenchen Universitaet)
[9]	Bauer D, Mulser P, Steeb W H 1995 Phys. Rev. Lett. 75 4622
[10]	Tikhonchuk V T 2002 Phys. Plasmas 9 1416
[11]	Xu M H, Li Y T, Yuan X H, Yu Q Z, Wang S J, Zhao W, Wen X L, Wang G C, Jiao C Y, He Y L, Zhang S G, Wang X X, Huang W Z, Gu Y Q, Zhang J 2006 Phys. Plasmas 13 104507
[12]	Xu M H, Li Y T, Carroll D C, Foster P S, Hawkes S 2012 Appl. Phys. Lett. 100 084101
[13]	Sinenian N, Fiksel G, Frenje J A, Freeman C G, Manuel M J E 2012 Phys. Plasmas 19 093118

施引文献

[1]	Snavely R A, Key M H, Hatchett S P, Cowan T E, Roth M, Phillips T W, Stoyer M A, Henry E A, Sangster T C, Singh M S, Wilks S C, MacKinnon A, Offenberger A, Pennington D M, Yasuike K, Langdon A B, Lasinski B F, Johnson J, Perry M D, Campbell E M 2000 Phys. Rev. Lett. 85 2945
[2]	Clark E L, Krushelnick K, Davies J R, Zepf M, Tatarakis M, Beg F N, Machacek A, Norreys P A, Santala M I K, Watts I, Dangor A E 2000 Phys. Rev. Lett. 84 670
[3]	Roth M, Blazevic A, Geissel M, Schlegel T 2002 Phys. Rev. Spec. Top.: Accel. Beams 5 061301
[4]	Hatchett S P, Brown C G, Cowan T E, Henry E A, Johnson J S 2000 Phys. Plasmas 7 2076
[5]	Hegelich M, Karsch S, Pretzler G, Habs D, Witte K, Guenther W, Allen M, Blazevic A, Fuchs J, Gauthier J C, Geissel M, Audebert P, Cowan T, Roth M 2002 Phys. Rev. Lett. 89 085002
[6]	Korzhimanov A V, Efimenko E S, Golubev S V, Kim A V 2012 Phys. Rev. Lett. 109 245008
[7]	Carrol D C, Tresca O, Prasad R, Romagnani L, Foster P S, Gallegos P, Ter-Avetisyan S, Green J S, Streeter M J V, Dover N, Palmer C A J, Brenner C M, Cameron F H, Quinn K E, Schreiber J, Robinson A P L, Baeva T, Quinn M N, Yuan X H, Najmudin Z, Zepf M, Neely D, Borghesi M, Mckenna P 2010 New J. Phys. 12 045020
[8]	Hegelich B M 2002 Ph. D. Dissertation (Germeny: Ludwig Maximilian Muenchen Universitaet)
[9]	Bauer D, Mulser P, Steeb W H 1995 Phys. Rev. Lett. 75 4622
[10]	Tikhonchuk V T 2002 Phys. Plasmas 9 1416
[11]	Xu M H, Li Y T, Yuan X H, Yu Q Z, Wang S J, Zhao W, Wen X L, Wang G C, Jiao C Y, He Y L, Zhang S G, Wang X X, Huang W Z, Gu Y Q, Zhang J 2006 Phys. Plasmas 13 104507
[12]	Xu M H, Li Y T, Carroll D C, Foster P S, Hawkes S 2012 Appl. Phys. Lett. 100 084101
[13]	Sinenian N, Fiksel G, Frenje J A, Freeman C G, Manuel M J E 2012 Phys. Plasmas 19 093118

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