Progress in study of low-energy photoelectron in ultra-fast strong fields-analytical R-matrix theory based semiclassical trajectory method

Huang Wen-Xiao; Zhang Yi-Zhu; Yan Tian-Min; Jiang Yu-Hai

doi:10.7498/aps.65.223204

Abstract

The semi-classical method based on the recently developed analytical R-matrix theory is reviewed in this work. The method is described with the application to ultra-fast strong-field direct ionization of atoms with one active electron in a linearly polarized field[Torlina L, Smirnova O 2012 Phys. Rev. A 86 043408]. The analytical R-matrix theory separates the space into inner and outer regions, naturally allowing the possibility of an analytical or semi-analytical description of wave function in the outer region, which can be approximated by Eikonal-Volkov solutions while the inner region provides well-defined boundary conditions. Applying the stationary phase method, the calculation of the ionization amplitude is cast into a superposition of components from trajectories and their associated phase factors. The shape of the tunneling wave packets associated with different instants of ionization is presented. It shows the exponential cost of deviating from the optimal tunneling trajectory renders the tunneling wave packet a Gaussian shape surrounding the semi-classical trajectory. The intrinsically non-adiabatic corrections to the sub-cycle ionization amplitude in the presence of both the Coulomb potential and the laser field is shown to have different influences on the probability of ionization. As a specific study case, soft recollisions of the released electron near the ionic core is investigated by using pure light-driven trajectories with Coulomb-corrected phase factor[Pisanty E, Ivanov M 2016 Phys. Rev. A 93 043408]. Incorporating the Coulomb potential, it is found problematic to use the conventional integration contour as chosen in other methods with trajectory-based Coulomb corrections, because the integration contour may run into the Coulomb-induced branch cuts and hence the analyticity of the integrand fails. In order to overcome the problem, the evolution time of the post-tunneling electron is extended into the complex domain which allows a trajectory to have an imaginary component. As the soft recollision occurs, the calculation of the ionization amplitude requires navigating the branch cuts cautiously. The navigating scheme is found based on closest-approach times which are the roots of closest-approach times equations. The appropriately selected closest-approach times that always present in the middle of branch-cut gate may serve to circumvent these branch cuts. The distribution of the closest-approach times presents rich geometrical structures in both the classical and quantum domains, and intriguing features of complex trajectories emerge as the electron returns near the core. Soft recollisions responsible for the low-energy structures are embedded in the geometry, and the underlying emergence of near-zero energy structures is discussed with the prediction of possible observations in experiments.

Keywords:

Authors and contacts

1.
Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China;
3.
ShanghaiTech University, Shanghai 201210, China

Corresponding author: Yan Tian-Min, yantm@sari.ac.cn;jiangyh@sari.ac.cn ; Jiang Yu-Hai, yantm@sari.ac.cn;jiangyh@sari.ac.cn

Funds: Project supported by the National Basic Research Program of China (Grant No. 2013CB922200), the National Natural Science Foundation of China (Grant Nos. 11420101003, 11274232, 11604347, 61675213, 91636105), and the Shanghai Sailing Program, China (Grant No. 16YF1412600).

References

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[17]	Torlina L, Ivanov M, Walters Z B, Smirnova O 2012Phys. Rev. A 86 043409
[18]	Pisanty E, Ivanov M 2016Phys. Rev. A 93 043408
[19]	Kaushal J, Smirnova O 2013Phys. Rev. A 88 013421
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[29]	Chen Z, Le A T, Morishita T, Lin C D 2009Phys. Rev. A 79 033409
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[31]	Smirnova O, Mouritzen A S, Patchkovskii S, Ivanov M Y 2007J. Phys. B:Atomic, Molecular and Optical Physics 40 F197
[32]	Brabec T, Ivanov M Y, Corkum P B 1996Phys. Rev. A 54 R2551
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[34]	Song X, Lin C, Sheng Z, Liu P, Chen Z, Yang W, Hu S, Lin C D, Chen J 2016Sci. Reports 6 28392
[35]	Smirnova O, Spanner M, Ivanov M 2008Phys. Rev. A 77 033407
[36]	Popov V S 1999Physics-Uspekhi 42 733
[37]	Perelomov A M, Popov V S, Terent'ev M V 1966JETP 23 924
[38]	Popruzhenko S V, Mur V D, Popov V S, Bauer D 2008Phys. Rev. Lett. 101 193003
[39]	Kästner A, Saalmann U, Rost J M 2012Phys. Rev. Lett. 108 033201
[40]	Kästner A, Saalmann U, Rost J M 2012J. Phys. B:Atomic, Molecular and Optical Physics 45 074011
[41]	Nubbemeyer T, Gorling K, Saenz A, Eichmann U, Sandner W 2008Phys. Rev. Lett. 101 233001
[42]	Landsman A S, Pfeiffer A N, Hofmann C, Smolarski M, Cirelli C, Keller U 2013New J. Phys. 15 013001

Cited By

[1]	Blaga C I, Catoire F, Colosimo P, Paulus G G, Muller H G, Agostini P, DiMauro L F 2008Nat. Phys. 5 335
[2]	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 2009Phys. Rev. Lett. 103 093001
[3]	Liu C, Hatsagortsyan K Z 2010Phys. Rev. Lett. 105 113003
[4]	Liu C, Hatsagortsyan K Z 2011J. Phys. B:Atomic, Molecular and Optical Physics 44 095402
[5]	Liu C, Hatsagortsyan K Z 2012Phys. Rev. A 85 023413
[6]	Paulus G G, Becker W, Nicklich W, Walther H 1994J. Phys. B:Atomic, Molecular and Optical Physics 27 L703
[7]	Becker W, Grasbon F, Kopold R, Milošević D, Paulus G, Walther H 2002In Advances in Atomic, Molecular, and Optical Physics (edited by Walther B B A H) (Vol. 48) (Waltham:Academic Press) pp35-98
[8]	Miloševic D B, Ehlotzky F 1998J. Phys. B:Atomic, Molecular and Optical Physics 31 4149
[9]	Popruzhenko S, Bauer D 2008J. Mod. Opt. 55 2573
[10]	Yan T M, Popruzhenko S V, Vrakking M J J, Bauer D 2010Phys. Rev. Lett. 105 253002
[11]	Yan T M, Bauer D 2012Phys. Rev. A 86 053403
[12]	Wu C Y, Yang Y D, Liu Y Q, Gong Q H, Wu M, Liu X, Hao X L, Li W D, He X T, Chen J 2012Phys. Rev. Lett. 109 043001
[13]	Dura J, Camus N, Thai A, Britz A, Hemmer M, Baudisch M, Senftleben A, Schröter C D, Ullrich J, Moshammer R, Biegert J 2013Sci. Reports 3 2675
[14]	Pullen M G, Dura J, Wolter B, Baudisch M, Hemmer M, Camus N, Arne Senftleben, Schroeter C D, Moshammer R, Ullrich J, Biegert J 2014J. Phys. B:Atomic, Molecular and Optical Physics 47 204010
[15]	Wolter B, Lemell C, Baudisch M, Pullen M G, Tong X M, Hemmer M, Senftleben A, Schröter C D, Ullrich J, Moshammer R, Biegert J, Burgdörfer J 2014Phys. Rev. A 90 063424
[16]	Torlina L, Smirnova O 2012Phys. Rev. A 86 043408
[17]	Torlina L, Ivanov M, Walters Z B, Smirnova O 2012Phys. Rev. A 86 043409
[18]	Pisanty E, Ivanov M 2016Phys. Rev. A 93 043408
[19]	Kaushal J, Smirnova O 2013Phys. Rev. A 88 013421
[20]	Torlina L, Kaushal J, Smirnova O 2013Phys. Rev. A 88 053403
[21]	Smirnova O, Spanner M, Ivanov M 2006J. Phys. B:Atomic, Molecular and Optical Physics 39 S307
[22]	Walters Z B, Smirnova O 2010J. Phys. B:Atomic, Molecular and Optical Physics 43 161002
[23]	Caillat J, Zanghellini J, Kitzler M, Koch O, Kreuzer W, Scrinzi A 2005Phys. Rev. A 71 012712
[24]	Scrinzi A 2010Phys. Rev. A 81 053845
[25]	Tao L, Scrinzi A 2012New J. Phys. 14 013021
[26]	Kuchiev M Y 1987JETP Lett. 45 404
[27]	Corkum P B 1993Phys. Rev. Lett. 71 1994
[28]	Yudin G L, Ivanov M Y 2001Phys. Rev. A 63 033404
[29]	Chen Z, Le A T, Morishita T, Lin C D 2009Phys. Rev. A 79 033409
[30]	Le A T, Lucchese R R, Tonzani S, Morishita T, Lin C D 2009Phys. Rev. A 80 013401
[31]	Smirnova O, Mouritzen A S, Patchkovskii S, Ivanov M Y 2007J. Phys. B:Atomic, Molecular and Optical Physics 40 F197
[32]	Brabec T, Ivanov M Y, Corkum P B 1996Phys. Rev. A 54 R2551
[33]	Huismans Y, Rouzée A, Gijsbertsen A, Jungmann J H, Smolkowska A S, Logman P S W M, Lépine F, Cauchy C, Zamith S, Marchenko T, Bakker J M, Berden G, Redlich B, van der Meer A F G, Muller H G, Vermin W, Schafer K J, Spanner M, Ivanov M Y, Smirnova O, D Bauer, Popruzhenko S V, Vrakking M J J 2011Science 331 61
[34]	Song X, Lin C, Sheng Z, Liu P, Chen Z, Yang W, Hu S, Lin C D, Chen J 2016Sci. Reports 6 28392
[35]	Smirnova O, Spanner M, Ivanov M 2008Phys. Rev. A 77 033407
[36]	Popov V S 1999Physics-Uspekhi 42 733
[37]	Perelomov A M, Popov V S, Terent'ev M V 1966JETP 23 924
[38]	Popruzhenko S V, Mur V D, Popov V S, Bauer D 2008Phys. Rev. Lett. 101 193003
[39]	Kästner A, Saalmann U, Rost J M 2012Phys. Rev. Lett. 108 033201
[40]	Kästner A, Saalmann U, Rost J M 2012J. Phys. B:Atomic, Molecular and Optical Physics 45 074011
[41]	Nubbemeyer T, Gorling K, Saenz A, Eichmann U, Sandner W 2008Phys. Rev. Lett. 101 233001
[42]	Landsman A S, Pfeiffer A N, Hofmann C, Smolarski M, Cirelli C, Keller U 2013New J. Phys. 15 013001

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