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Using a three-dimensional classical ensemble model, we investigate ultrafast dynamics in nonsequential double-ionization (NSDI) of Ar atom by co-rotating two-color circularly polarized laser fields with the frequency ratio varying between 2 and 5. Numerical results indicate that the NSDI probability gradually increases with the frequency ratio between the two components increasing. The probability for the frequency ratio 5 is one order of magnitude higher than for the frequency ratio 2. Back analysis of NSDI trajectories shows that recollision occurs mainly via a short looping trajectory. With the frequency ratio increasing, the traveling time of the free electron shortens. Furthermore, the relative contribution of recollision-induced excitation with subsequent field ionization mechanism in NSDI gradually increases as the frequency ratio increases. It is attributed to smaller recollision energy and larger recollision distance for larger frequency ratio.
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图 1 不同频率比时同向旋转双色场的电场矢量(蓝虚线)和负矢势(红实线) (a) 频率比为2; (b) 频率比为3; (c) 频率比为4; (d) 频率比为5. 箭头标出了时间演化的方向, 黑点标出了一个电场极大值及其对应的负矢势
Figure 1. Combined laser electric field E(t) (dashed curves) and the corresponding negative vector potential A(t) (solid curves) for co-rotating two-color circularly polarized laser fields at different frequency ratios of (a) 2, (b) 3, (c) 4, (d) 5. The arrows indicate the time evolution direction. The black dots mark a field maximum and its negative vector potential.
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[1] Corkum P B 1993 Phys. Rev. Lett. 71 1994
Google Scholar
[2] Feuerstein B, Moshammer R, Fischer D, Dorn A, Schröter C D, Deipenwisch J, Crespo Lopez-Urrutia J R, Höhr C, Neumayer P, Ullrich J, Rottke H, Trump C, Wittmann M, Korn G, Sandner W 2001 Phys. Rev. Lett. 87 043003
Google Scholar
[3] Chen Y, Zhou Y, Li Y, Li M, Lan P, Lu P 2018 Phys. Rev. A 97 013428
Google Scholar
[4] Liu Y, Fu L, Ye D, Liu J, Li M, Wu C, Gong Q, Moshammer R, Ullrich J 2014 Phys. Rev. Lett. 112 013003
Google Scholar
[5] Huang C, Guo W, Zhou Y, Wu Z 2016 Phys. Rev. A 93 013416
Google Scholar
[6] Liao Q, Winney A H, Lee S K, Lin Y F, Adhikari P, Li W 2017 Phys. Rev. A 96 023401
Google Scholar
[7] 黄诚, 钟明敏, 吴正茂 2019 68 033201
Google Scholar
Huang C, Zhong M M, Wu Z M 2019 Acta Phys. Sin. 68 033201
Google Scholar
[8] Fittinghoff D N, Bolton P R, Chang B, Kulander K C 1992 Phys. Rev. Lett. 69 2642
Google Scholar
[9] Weber Th, Giessen H, Weckenbrock M, Urbasch G, Staudte A, Spielberger L, Jagutzki O, Mergel V, Vollmer M, Dörner R 2000 Nature 405 658
Google Scholar
[10] Wang Y, Xu S, Quan W, Gong C, Lai X, Hu S, Liu M, Chen J, Liu X 2016 Phys. Rev. A 94 053412
Google Scholar
[11] Figueira de Morisson Faria C, Liu X 2011 J. Mod. Opt. 58 1076
Google Scholar
[12] Becker W, Liu X, Jo Ho P, Eberly J H 2012 Rev. Mod. Phys. 84 1011
Google Scholar
[13] Li H Y, Chen J, Jiang H B, Liu J, Fu P M, Gong Q H, Yan Z C, Wang B B 2009 J. Phys. B 42 125601
Google Scholar
[14] Parker J S, Doherty B J S, Taylor K T, Schultz K D, Blaga C I, DiMauro L F 2006 Phys. Rev. Lett. 96 133001
Google Scholar
[15] Wang X, Eberly J H 2010 Phys. Rev. Lett. 105 083001
Google Scholar
[16] Hao X L, Chen J, Li W D, Wang B B, Wang X D, Becker W 2014 Phys. Rev. Lett. 112 073002
Google Scholar
[17] Chen Z J, Liang Y, Lin C D 2010 Phys. Rev. Lett. 104 253201
Google Scholar
[18] Ye D, Li M, Fu L, Liu J, Gong Q, Liu Y, Ullrich J 2015 Phys. Rev. Lett. 115 123001
Google Scholar
[19] 赵磊, 张琦, 董敬伟, 吕航, 徐海峰 2016 65 223201
Google Scholar
Zhao L, Zhang Q, Dong J W, Lü H, Xu H F 2016 Acta Phys. Sin. 65 223201
Google Scholar
[20] Tan J, Xu S, Han X, Zhou Y, Li M, Cao W, Zhang Q, Lu P 2021 Adv. Photonics 3 035001
Google Scholar
[21] Zhou Y, Tan J, Li M, Lu P 2021 Sci. China, Ser. G 64 273011
Google Scholar
[22] Fleischer A, Kfir O, Diskin T, Sidorenko P, Cohen O 2014 Nat. Photonics 8 543
Google Scholar
[23] Eckart S, Kunitski M, Ivanov I, Richter M, Fehre K, Hartung A, Rist J, Henrichs K, Trabert D, Schlott N, Schmidt L P H, Jahnke T, Schoffler M S, Kheifets A, Dorner R 2018 Phys. Rev. A 97 041402
Google Scholar
[24] Li M, Jiang W, Xie H, Luo S, Zhou Y, Lu P 2018 Phys. Rev. A 97 023415
Google Scholar
[25] Ke Q, Zhou Y, Tan J, He M, Liang J, Zhao Y, Li M, Lu P 2019 Opt. Express 27 32193
Google Scholar
[26] Chaloupka J L, Hickstein D D 2016 Phys. Rev. Lett. 116 143005
Google Scholar
[27] Mancuso C A, Dorney K M, Hickstein D D, Chaloupka J L, Ellis J L, Dollar F J, Knut R, Grychtol P, Zusin D, Gentry C, Gopalakrishnan M, Kapteyn H C, Murnane M M 2016 Phys. Rev. Lett. 117 133201
Google Scholar
[28] Eckart S, Richter M, Kunitski M, Hartung A, Rist J, Henrichs K, Schlott N, Kang H, Bauer T, Sann H, Schmidt L P H, Schoffler M, Jahnke T, Dorner R 2016 Phys. Rev. Lett. 117 133202
Google Scholar
[29] Lin K, Jia X, Yu Z, He F, Ma J, Li H, Gong X, Song Q, Ji Q, Zhang W, Li H, Lu P, Zeng H, Chen J, Wu J 2017 Phys. Rev. Lett. 119 203202
Google Scholar
[30] Li B, Yang X, Ren X, Zhang J 2019 Opt. Express 27 32700
Google Scholar
[31] Xu T, Zhu Q, Chen J, Ben S, Zhang J, Liu X 2018 Opt. Express 26 1645
Google Scholar
[32] Huang C, Zhong M, Wu Z 2018 Opt. Express 26 26045
Google Scholar
[33] Ma X, Zhou Y, Chen Y, Li M, Li Y, Zhang Q, Lu P 2019 Opt. Express 27 1825
Google Scholar
[34] Huang C, Pang H, Huang X, Zhong M, Wu Z 2020 Opt. Express 28 10505
Google Scholar
[35] Pang H, Huang X, Huang C 2020 Int. J. Mod. Phys. B 34 2050304
Google Scholar
[36] Peng M, Bai L H, Guo Z 2021 Commun. Theor. Phys. 73 075501
Google Scholar
[37] Eichmann H, Egbert A, Nolte S, Momma C, Wellegehausen B 1995 Phys. Rev. A 51 R3414
Google Scholar
[38] Qiao Y, Wu D, Chen J, Wang J, Guo F, Yang Y 2019 Phys. Rev. A 100 063428
Google Scholar
[39] Huang C, Zhong M, Wu Z 2019 Opt. Express 27 7616
Google Scholar
[40] Chaloupka J L 2020 J. Phys. B 53 185601
Google Scholar
[41] Wu D, Guo F, Wang J, Chen J, Yang Y 2020 Commun. Theor. Phys. 72 055503
Google Scholar
[42] Haan S L, Breen L, Karim A, and Eberly J H 2006 Phys. Rev. Lett. 97 103008
Google Scholar
[43] Chen J, Nam C H 2002 Phys. Rev. A 66 053415
Google Scholar
[44] Li Y, Xu J, Yu B, Wang X 2020 Opt. Express 28 7341
Google Scholar
[45] Chen X, Ruiz C, He F, Zhang J 2020 Opt. Express 28 14884
Google Scholar
[46] Huang C, Zhong M, Wu Z 2018 Sci. Rep. 8 8772
Google Scholar
[47] Huang C, Zhong M, Wu Z 2016 J. Chem. Phys. 145 044302
Google Scholar
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