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The dissociation dynamics of hydrogen molecular ions in intense fields has been investigated by using an accurate three-dimensional (3D) time-dependent wave packet approach. Its dissociation mechanism and intensity dependence can be studied by analyzing the dissociation probability and kinetic energy resolved (KER) spectra of H2+. It is found that the dissociation of H2+ comes from ν=5–9 states at the laser intensity of I1= 5.0×1013 W/cm2. The dissociation process includes bond softening (BS), bond hardening (BH), and below threshold dissociation (BTD). As the laser intensity increases to I2=1.0×1014 W/cm2, the above threshold dissociation (ATD) from ν=3 and 4 states is predominant, and the contributions from the bond softening and bond hardening are reduced during the dissociation process. The above conclusions may provide scientific prediction and theoretical guidance for the experiment in the future.
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Keywords:
- photodissociation /
- hydrogen molecular ion /
- time-dependent wave packet method /
- kinetic energy resolved spectra
[1] Yao H B, Zheng Y J 2012 Chin. Phys. B 21 023302
[2] Feng L Q, Chu T S, Wang L 2013 Chin. Phys. B 22 023302
[3] Yao H B, Zheng Y J 2011 Acta Phys. Sin. 60 128201(in Chinese) [姚洪斌, 郑雨军 2011 60 128201]
[4] Yao H B, Zheng Y J 2011 Phys. Chem. Chem. Phys. 13 8900
[5] Xu T Y, He F 2013 Acta Phys. Sin. 62 068201(in Chinese) [徐天宇, 何峰 2013 62 068201]
[6] Yao H B, Lin S Y, Zheng Y J 2011 J. Theor. Comp. Chem. 10 509
[7] Wollenhaupt M, Engel V, Baumert T 2005 Annu. Rev. Phys. Chem. 56 25
[8] Bucksbaum P H, Zavriyev A, Muller H G, Schumacher D W 1990 Phys. Rev. Lett. 64 1883
[9] Frasinski L J, Posthumus J H, Plumridge J, Codling K, Taday P F, Langley A J 1999 Phys. Rev. Lett. 83 3625
[10] Jolicard G, Atabek O 1992 Phys. Rev. A 46 5845
[11] Posthumus J H 2004 Rep. Prog. Phys. 67 623
[12] Pavicic D, Kiess A, Hansch T W, Figger H 2005 Phys. Rev. Lett. 94 163002
[13] Magrakvelidze M, He F, Niederhausen T, Litvinyuk I V, Thumm U 2009 Phys. Rev. A 79 033410
[14] Kling M F, Siedschlag C, Verhoef A J, Khan J I, Schultze M, Uphues T, Ni Y, Uiberacker M, Drescher M, Krausz F, Vrakking M J 2006 Science 312 246
[15] Esry B D, Sayler A M, Wang P Q, Carnes K D, Ben-Itzhak I 2006 Phys. Rev. Lett. 97 013003
[16] Guo W, Lu X Q, Zhao D, Wang X L 2014 Phys. Scr. 89 025401
[17] Hua J J, Esry B D 2009 Phys. Rev. A 80 013413
[18] Chatterjee S, Dutta B, Bhattacharyya S S 2011 Phys. Rev. A 83 063413
[19] Yang D, Cong S L 2011 Phys. Rev. A 84 013424
[20] Bhattacharya R, Chatterjee S, Bhattacharyya S S 2012 Phys. Rev. A 85 033424
[21] He H X, Lu R F, Zhang P Y, Guo Y H, Han K L, He G Z 2011 Phys. Rev. A 84 033418
[22] He H X, Lu R F, Zhang P Y, Han K L, He G Z 2012 J. Chem. Phys. 136 024311
[23] Lu R F, Zhang P Y, Han K L 2008 Phys. Rev. E 77 066701
[24] Hu J, Han K L, He G Z 2005 Phys. Rev. Lett. 95 123001
[25] Feuerstein B, Thumm U 2003 Phys. Rev. A 67 043405
[26] Ben-Itzhak I, Wang P Q, Xia J F, Sayler A M, Smith M A, Carnes K D, Esry B D 2005 Phys. Rev. Lett. 95 073002
[27] Wang P Q, Sayler A M, Carnes K D, Xia J F, Smith M A, Esry B D, Ben-Itzhak I 2006 Phys. Rev. A 74 043411
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[1] Yao H B, Zheng Y J 2012 Chin. Phys. B 21 023302
[2] Feng L Q, Chu T S, Wang L 2013 Chin. Phys. B 22 023302
[3] Yao H B, Zheng Y J 2011 Acta Phys. Sin. 60 128201(in Chinese) [姚洪斌, 郑雨军 2011 60 128201]
[4] Yao H B, Zheng Y J 2011 Phys. Chem. Chem. Phys. 13 8900
[5] Xu T Y, He F 2013 Acta Phys. Sin. 62 068201(in Chinese) [徐天宇, 何峰 2013 62 068201]
[6] Yao H B, Lin S Y, Zheng Y J 2011 J. Theor. Comp. Chem. 10 509
[7] Wollenhaupt M, Engel V, Baumert T 2005 Annu. Rev. Phys. Chem. 56 25
[8] Bucksbaum P H, Zavriyev A, Muller H G, Schumacher D W 1990 Phys. Rev. Lett. 64 1883
[9] Frasinski L J, Posthumus J H, Plumridge J, Codling K, Taday P F, Langley A J 1999 Phys. Rev. Lett. 83 3625
[10] Jolicard G, Atabek O 1992 Phys. Rev. A 46 5845
[11] Posthumus J H 2004 Rep. Prog. Phys. 67 623
[12] Pavicic D, Kiess A, Hansch T W, Figger H 2005 Phys. Rev. Lett. 94 163002
[13] Magrakvelidze M, He F, Niederhausen T, Litvinyuk I V, Thumm U 2009 Phys. Rev. A 79 033410
[14] Kling M F, Siedschlag C, Verhoef A J, Khan J I, Schultze M, Uphues T, Ni Y, Uiberacker M, Drescher M, Krausz F, Vrakking M J 2006 Science 312 246
[15] Esry B D, Sayler A M, Wang P Q, Carnes K D, Ben-Itzhak I 2006 Phys. Rev. Lett. 97 013003
[16] Guo W, Lu X Q, Zhao D, Wang X L 2014 Phys. Scr. 89 025401
[17] Hua J J, Esry B D 2009 Phys. Rev. A 80 013413
[18] Chatterjee S, Dutta B, Bhattacharyya S S 2011 Phys. Rev. A 83 063413
[19] Yang D, Cong S L 2011 Phys. Rev. A 84 013424
[20] Bhattacharya R, Chatterjee S, Bhattacharyya S S 2012 Phys. Rev. A 85 033424
[21] He H X, Lu R F, Zhang P Y, Guo Y H, Han K L, He G Z 2011 Phys. Rev. A 84 033418
[22] He H X, Lu R F, Zhang P Y, Han K L, He G Z 2012 J. Chem. Phys. 136 024311
[23] Lu R F, Zhang P Y, Han K L 2008 Phys. Rev. E 77 066701
[24] Hu J, Han K L, He G Z 2005 Phys. Rev. Lett. 95 123001
[25] Feuerstein B, Thumm U 2003 Phys. Rev. A 67 043405
[26] Ben-Itzhak I, Wang P Q, Xia J F, Sayler A M, Smith M A, Carnes K D, Esry B D 2005 Phys. Rev. Lett. 95 073002
[27] Wang P Q, Sayler A M, Carnes K D, Xia J F, Smith M A, Esry B D, Ben-Itzhak I 2006 Phys. Rev. A 74 043411
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