Iranian Journal of Physics Research

Investigation of nonadiabatic electron dynamics effects on high-harmonic generation spectrum of π‡πŸ+

Document Type : Original Article

Authors

Sajad Taghipour
Mohsen Vafaee

Department of Chemistry, Tarbiat Modares University, PO Box 14115-175, Tehran, Iran

https://doi.org/10.47176/ijpr.25.3.11628
Abstract
We numerically solved the full-dimensional electronic time-dependent Schrödinger equation for  H2+ with Born-Oppenheimer approximation under different sin2-shaped and trapezoidal laser pulses at some different wavelengths, with  𝐼=1×1013, 3×1013 and 6×1013 Wcm-2 intensity at 4.73 a.u. and 7.0 a.u. internuclear distances. Some structures such as minima and oscillatory patterns appearing in the high-order harmonic generation (HHG) spectra are investigated by considering the electron localization, electron nonadiabatic dynamics, and the Rabi frequency of the population of the ground and excited electronic states to better understand the origins of these structures in the HHG spectrum. We have explored that the oscillatory pattern in the HHG spectra originates from an oscillatory pattern in the  𝑆𝑔(πœ”) and 𝑆𝑒(πœ”) (refers to recombination to the  1πœŽπ‘” and 2π‘πœŽπ‘’ respectively) spectra and these oscillatory patterns in turn are due to the nonadiabatic electronic behavior appearing as a slow oscillation pattern in the ground and first excited electronic states populations. Also, we show that the minima of the HHG spectrum are related to 𝑆𝑔(πœ”) , 𝑆𝑒(πœ”), 𝑆𝑔𝑒(πœ”), and orbital interference.

Keywords

Half Heusler
Phase transition
dielectic function
Semiconductor
Bulk modulus
Band gap
Subjects
  1. T Zuo, et al. Chemical physics letters 259 (3-4) (1996) 313.
  2. A D Bandrauk, Molecules in Laser Fields CRC Press (1993).
  3. P B Corkum, Physical Review Letters 71(13) (1993) 1994.
  4. F Krausz and M Ivanov, Reviews of Modern Physics 81(1) (2009) 163.
  5. J Itatani, J Levesque, D Zeidler, H Niikura, H Pépin, J C Kieffer, P B Corkum and D M Villeneuve, Nature 432 (7019) (2004) 867.
  6. J Itatani, et al., Nature 432 (7019) (2004) 867.
  7. H Kapteyn, O Cohen, I Christov, and M Murnane, Science 317 (5839) (2007) 775.
  8. L Gallmann, C Cirelli, and U Keller, Annual review of physical chemistry 63 (2012) 447.
  9. X -B Bian and A D. Bandrauk, Physical review letters 113 (19) (2014) 193901.
  10. H Ahmadi, M Vafaee, and A Maghari, Physical Review A 94 (3) (2016) 033415.
  11. M Miller, A JaroΕ„-Becker, and A Becker, Physical Review A 93(1) (2016) 013406.
  12. M Miller, A JaroΕ„-Becker, and A Becker, Molecular Physics 115(15-16) (2017) 1758.
  13. M Uhlmann, T Kunert and R Schmidt, Journal of Physics B: Atomic, Molecular and Optical Physics 39 (14) (2006) 2989.
  14. M Lein, et al., Physical Review A 66 (2) (2002) 023805.
  15. M Lein, et al., Physical review letters 88 (18) (2002) 183903.
  16. M Ciappina, A Becker, and A JaroΕ„-Becker, Physical Review A 76 (6) (2007) 063406.
  17. N Wagner, et al., Proceedings of the National Academy of Sciences 103 (36) (2006) 13279.
  18. W Li, et al., Science, 322 (5905) (2008) 1207.
  19. S Baker et al., Physical review letters 101 (5) (2008) 053901.
  20. T Kanai, S Minemoto, and H Sakai, Nature 435 (7041) (2005) 470.
  21. C Vozzi, et al., Physical review letters 95 (15) (2005) 153902.
  22. W Boutu, et al., Nature Physics 4 (7) (2008) 545.
  23. X Zhou, et al., Physical Review Letters 100 (7) (2008) 073902.
  24. C Vozzi, et al., 7 (10) (2011) 822.
  25. G L Kamta and A D Bandrauk, Physical Review A 71(5) (2005) 053407.
  26. Y C Han, L B Madsen, Journal of Physics B: Atomic, Molecular and Optical Physics 43 (22) (2010) 225601.
  27. Y C Han and L B Madse, Physical Review A 87(4) (2013) 043404.
  28. J R Hiskes, Physical Review, 122 (4) (1961) 1207.
  29. M Vafaee, Physical Review A 78(2) (2008) 023410.
  30. A D Bandrauk and H Shen, The Journal of chemical physics 99 (2) (1993) 1185-1193.
  31. M Feit, J Fleck Jr, and A Steiger, Journal of Computational Physics 47 (3) (1982) 412.
  32. M Vafaee and H Sabzyan, Journal of Physics B: Atomic, Molecular and Optical Physics 37(20) (200) 4143.
  33. M Vafaee, H Sabzyan, Z Vafaee and A Katanforoush, arXiv preprint physics, 2005/0509072.
  34. M Vafaee, et al., Physical Review A, 74 (4) (2006) 043416.
  35. M Vafaee, H Ahmadi and A Maghari, Journal of Physics B: Atomic, Molecular and Optical Physics, 50 (2) (2016) 025601.
  36. C Chandre, S Wiggins, and T Uzer, Physica D: Nonlinear Phenomena 181 (3-4) (2003) 171-196.
  37. Lefebvre, C., et al., Physical Review A, 2014. 89(2) (2014) 023403.
  38. P L Knight and P W Milonni, Physics Reports 66(2) (1980) 21.
  39. P F Bernath, Oxford University Press, 2015.

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