原子势对阈上电离平台的影响

田原野; 郭福明; 杨玉军

doi:10.7498/aps.62.073202

摘要

本文从理论上分别研究了长程和短程原子势对阈上电离光电子谱平台结构的影响. 发现在相当大的激光参数范围内, 长程势的阈上电离谱总是呈现出清晰的双平台结构; 对于短程势, 阈上电离谱双平台的界限不再清晰, 随着入射激光强度的减小, 逐渐从双平台过渡到单平台. 基于经典分析和量子力学数值模拟, 阐明了在不同模型势下, 电离速率的差别和再散射电子弹性碰撞截面的不同导致了上述平台结构的差异．此外, 还讨论了激光脉冲空间强度分布对这一现象的影响.

关键词:

Abstract

We investigate theoretically the influence of the long-range and short-range potentials on the plateau structure of the above threshold ionization. In a considerable range of laser parameter, the above threshold ionization spectra of the atoms in the long-range potential always exhibit a clear double-plateau structure; as for the atoms with a short-range potential, the boundary of the double-plateau in photoelectron spectra is no longer clear, and with the decrease of laser intensity, it transits from the double-plateau to the single-plateau gradually. The numerical simulation based on classical analysis and quantum mechanics illustrates that in different model potentials, the distinction of ionization rates as well as the difference of the electronic elastic rescattering cross-sections results in the difference of plateau structures. In addition, the influence of intensity distribution of laser pulse on the phenomenon is discussed.

Keywords:

作者及机构信息

1.
吉林大学原子与分子物理研究所, 长春 130012

基金项目: 国家自然科学基金(批准号: 11274141, 11034003)资助的课题.

Authors and contacts

1.
Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 11274141, 11034003).

参考文献

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[3]	Zhou Z Y, Yuan J M 2007 Chin. Phys. 16 675
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[8]	Schafer K J, Yang B, DiMauro L F, Kulander K C 1993 Phys. Rev. Lett. 70 1599
[9]	Paulus G G, Nicklich W, Xu H, Lambropoulos P, Walther H 1994 Phys. Rev. Lett. 72 2851
[10]	Cormier E, Garzella D, Breger P, Agostini P, Cheriaux G, Leblanc C 2001 J. Phys. B 34 L9
[11]	Becker W, Grasbon F, Kopold R, Milosevic D B, Paulus G G, Walther H 2002 Advances in Atomic, Molecular, and Optical Physics 48 35
[12]	Grasbon F, Paulus G G, Walther H, Villoresi P, Sansone G, Stagira S, Nisoli M, Silverstri S 2003 Phys. Rev. Lett. 91 173003
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[16]	Telnov D A, Chu S I 2009 Phys. Rev. A 79 043421
[17]	Marchenko T, Mulller H G, Schafer K J, Vrakking M J 2010 J. Phys. B 43 185001
[18]	Guo L, Han S S, Chen J 2010 Optics Express 18 1240
[19]	Armstrong G S J, Parker J S, Taylor K T 2011 New. J. Phys. 13 013024
[20]	Tong X M, Hino K, Toshima N 2008 Phys. Rev. A 74 031405(R)
[21]	Kling M F, Rauschenberger J, Verhoef A J, Hasovic E, Uphues T, Milosevic D B, Muller H G, Vrakking M J J 2008 New. Journal. Phys. 10 025024
[22]	Kamta G L, Bandrauk A D 2006 Phys. Rev. A 74 033415
[23]	Meckel M, Comtois D, Zeidler D, Staudte A, Pavicic D, Bandulet H C, Pepin H, Kieffer J C, Dorner R, Villeneuve D M, Corkum P B 2008 Science 320 1478
[24]	van der Zwan E V, Lein M 2012 Phys. Rev. Lett. 108 043004
[25]	Blaga C I, Xu J L, Dichiara A D, Sistrunk E, Zhang K, Agostini P, Miller T A, DiMauro L F, Lin C D 2012 Nature 483 194
[26]	Andriu G, Balciunas T, Alisauskas S, Pugzlys A, Baltuska A, Popmintchev T, Chen M C, Murnane M M, Kapteyn H C 2011 Opt. Lett. 36 2755
[27]	Agostini P, DiMauro L F 2008 Contemp. Phys. 49 179
[28]	Blaga C I, Catoire F, Colosimo P, Paulus G G, Muller H G, Agostini P, DiMauro L F 2009 Natu. Phys. 5 335
[29]	Quan W, Lin Z, Wu M, Kang H, Liu H, Liu X, Chen J, Liu J, He X T, Chen S G, Xiong H, Guo L, Xu H, Fu Y, Cheng Y, Xu Z Z 2009 Phys. Rev. Lett. 103 093001
[30]	Liu C P, Nakajima T, Sakka T, Ohgaki H 2008 Phys. Rev. A 77 043411
[31]	Corkum P B 1993 Phys. Rev. Lett. 71 1994
[32]	Yang Y J, Chen G, Chen J G, Zhu Q R 2004 Chin. Phys. Lett. 21 652
[33]	Javanainen J, Eberly J H, Su Q 1988 Phys. Rev. A 38 3430
[34]	Sprangle P, Penano J R, Hafizi B 2002 Phys. Rev. E 66 046418
[35]	Morishita T, Chen Z G, Watanabe S, Lin C D 2007 Phys. Rev. A 75 023407

施引文献

[1]	Protopapas M, Keitel C H, Knight P L 1997 Rep. Prog. Phys. 60 389
[2]	Brabec T, Krauze F 2000 Rev. Mod. Phys. 72 545
[3]	Zhou Z Y, Yuan J M 2007 Chin. Phys. 16 675
[4]	Wang B B, Li X F, Gao L H, Fu P M, Guo D S, Freeman R R 2001 Chin. Phys. Lett. 18 1199
[5]	Tong X M, Li J M 1991 Acta Phys. Sin. 40 190 (in Chinese) [全晓明, 李家明 1991 物理学报 40 190]
[6]	Li Y, Yang S P, Jia X Y, Chen J 2010 Chin. Phys. B 19 043303
[7]	Chen B Z 1990 Acta Phys. Sin. 39 40 (in Chinese) [陈宝振 1990 物理学报 39 40]
[8]	Schafer K J, Yang B, DiMauro L F, Kulander K C 1993 Phys. Rev. Lett. 70 1599
[9]	Paulus G G, Nicklich W, Xu H, Lambropoulos P, Walther H 1994 Phys. Rev. Lett. 72 2851
[10]	Cormier E, Garzella D, Breger P, Agostini P, Cheriaux G, Leblanc C 2001 J. Phys. B 34 L9
[11]	Becker W, Grasbon F, Kopold R, Milosevic D B, Paulus G G, Walther H 2002 Advances in Atomic, Molecular, and Optical Physics 48 35
[12]	Grasbon F, Paulus G G, Walther H, Villoresi P, Sansone G, Stagira S, Nisoli M, Silverstri S 2003 Phys. Rev. Lett. 91 173003
[13]	Bauer D 2005 Phys. Rev. Lett. 94 113001
[14]	Milosevic D B, Paulus G G, Bauer D, Becker W 2006 J. Phys. B 39 R203
[15]	Milosevic D B, Hasovic E, Busalazic M, Gazibegovic-busuladizic A, Becker W 2007 Phys. Rev. A 76 053410
[16]	Telnov D A, Chu S I 2009 Phys. Rev. A 79 043421
[17]	Marchenko T, Mulller H G, Schafer K J, Vrakking M J 2010 J. Phys. B 43 185001
[18]	Guo L, Han S S, Chen J 2010 Optics Express 18 1240
[19]	Armstrong G S J, Parker J S, Taylor K T 2011 New. J. Phys. 13 013024
[20]	Tong X M, Hino K, Toshima N 2008 Phys. Rev. A 74 031405(R)
[21]	Kling M F, Rauschenberger J, Verhoef A J, Hasovic E, Uphues T, Milosevic D B, Muller H G, Vrakking M J J 2008 New. Journal. Phys. 10 025024
[22]	Kamta G L, Bandrauk A D 2006 Phys. Rev. A 74 033415
[23]	Meckel M, Comtois D, Zeidler D, Staudte A, Pavicic D, Bandulet H C, Pepin H, Kieffer J C, Dorner R, Villeneuve D M, Corkum P B 2008 Science 320 1478
[24]	van der Zwan E V, Lein M 2012 Phys. Rev. Lett. 108 043004
[25]	Blaga C I, Xu J L, Dichiara A D, Sistrunk E, Zhang K, Agostini P, Miller T A, DiMauro L F, Lin C D 2012 Nature 483 194
[26]	Andriu G, Balciunas T, Alisauskas S, Pugzlys A, Baltuska A, Popmintchev T, Chen M C, Murnane M M, Kapteyn H C 2011 Opt. Lett. 36 2755
[27]	Agostini P, DiMauro L F 2008 Contemp. Phys. 49 179
[28]	Blaga C I, Catoire F, Colosimo P, Paulus G G, Muller H G, Agostini P, DiMauro L F 2009 Natu. Phys. 5 335
[29]	Quan W, Lin Z, Wu M, Kang H, Liu H, Liu X, Chen J, Liu J, He X T, Chen S G, Xiong H, Guo L, Xu H, Fu Y, Cheng Y, Xu Z Z 2009 Phys. Rev. Lett. 103 093001
[30]	Liu C P, Nakajima T, Sakka T, Ohgaki H 2008 Phys. Rev. A 77 043411
[31]	Corkum P B 1993 Phys. Rev. Lett. 71 1994
[32]	Yang Y J, Chen G, Chen J G, Zhu Q R 2004 Chin. Phys. Lett. 21 652
[33]	Javanainen J, Eberly J H, Su Q 1988 Phys. Rev. A 38 3430
[34]	Sprangle P, Penano J R, Hafizi B 2002 Phys. Rev. E 66 046418
[35]	Morishita T, Chen Z G, Watanabe S, Lin C D 2007 Phys. Rev. A 75 023407

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