Abstract

We introduce an ab initio approach and the modified strong-field approximation to investigate the alignment-dependent ionization of H2+(1πu) exposed to different few-cycle laser fields. The ab initio calculations are performed by the B-splines one-center method and the Crank-Nicolson method in spherical coordinates. It is shown that the peak ionization probabilities appear around alignment angles 50° and 40° at the laser intensities 3×1013 W/cm2 and 5×1013 W/cm2, respectively, and the above distinct features come from the resonant excitation of the molecular ion, which is confirmed by calculation including and excluding the state 2σg in the basis expansion. Furthermore, the results obtained by including the state 2σg in the ab initio simulations can be qualitatively reproduced by the modified molecular length gauge strong-field approximation (SFA) taking account of the 1πu and 2σg states simultaneously. Analysis indicates that a part of electron is directly emitted from the 1πu orbital and another portion of electron is released from 2σg orbital and other excited state after the single-photon resonant transition between 1πu and 2σg orbitals.

© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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    [Crossref] [PubMed]
  2. A. Saenz, “Enhanced ionization of molecular hydrogen in very strong fields,” Phys. Rev. A 61, 051402 (2000).
    [Crossref]
  3. E. Constant, H. Stapelfeldt, and P. B. Corkum, “Observation of Enhanced Ionization of Molecular Ions in Intense Laser Fields,” Phys. Rev. Lett.  76, 4140 (1996).
    [Crossref] [PubMed]
  4. G. L. Kamta and A. D. Bandrauk, “Phase Dependence of Enhanced Ionization in Asymmetric Molecules,” Phys. Rev. Lett.  94, 203003 (2005).
    [Crossref] [PubMed]
  5. B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
    [Crossref]
  6. L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
    [Crossref]
  7. H. G. Muller, “Numerical simulation of high-order above-threshold-ionization enhancement in argon,” Phys. Rev. A 60, 1341 (1999).
    [Crossref]
  8. B. B. Li, S. L. Hu, X. T. He, and J. Chen, “Resonance-like enhancement in high-order above threshold ionization of atoms and molecules in intense laser fields,” Opt. Express 26, 13012 (2018).
    [Crossref] [PubMed]
  9. P. M. Paul, T. O. Clatterbuck, C. Lyngå, P. Colosimo, L. F. DiMauro, P. Agostini, and K. C. Kulander, “Enhanced High Harmonic Generation from an Optically Prepared Excited Medium,” Phys. Rev. Lett.  94, 113906 (2005).
    [Crossref] [PubMed]
  10. B. B. Wang, J. Chen, J. Liu, Z. C. Yan, and P. M. Fu, “Attosecond-pulse-controlled high-order harmonic generation in ultrashort laser fields,” Phys. Rev. A 78, 023413 (2008).
    [Crossref]
  11. J. Heslar, D. A. Telnov, and S. I. Chu, “Enhancement of VUV and EUV generation by field-controlled resonance structures of diatomic molecules,” Phys. Rev. A 93, 063401 (2016).
    [Crossref]
  12. Y. C. Han and L. B. Madsen, “Minimum in the high-order harmonic generation spectrum from molecules: role of excited states,” J. Phys. B 43, 225601 (2010).
    [Crossref]
  13. Y. C. Han and L. B. Madsen, “Internuclear-distance dependence of the role of excited states in high-order-harmonic generation of H2+,” Phys. Rev. A 87, 043404 (2013).
    [Crossref]
  14. X. B. Bian and A. D. Bandrauk, “Multichannel Molecular High-Order Harmonic Generation from Asymmetric Diatomic Molecules,” Phys. Rev. Lett.  105, 093903 (2010).
    [Crossref] [PubMed]
  15. X. B. Bian and A. D. Bandrauk, “Nonadiabatic molecular high-order harmonic generation from polar molecules: Spectral redshift,” Phys. Rev. A 83, 041403 (2011).
    [Crossref]
  16. S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
    [Crossref] [PubMed]
  17. H. Stapelfeldt and T. Seideman, “Colloquium: Aligning molecules with strong laser pulses,” Rev. Mod. Phys.  75, 543 (2003).
    [Crossref]
  18. I. V. Litvinyuk, K. F. Lee, P. W. Dooley, D. M. Rayner, D. M. Villeneuve, and P. B. Corkum, “Alignment-Dependent Strong Field Ionization of Molecules,” Phys. Rev. Lett.  90, 233003 (2003).
    [Crossref] [PubMed]
  19. D. Pavičić, K. F. Lee, D. M. Rayner, P. B. Corkum, and D. M. Villeneuve, “Direct Measurement of the Angular Dependence of Ionization for N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  98, 243001 (2007).
    [Crossref]
  20. J. L. Hansen, L. Holmegaard, J. H. Nielsen, H. Stapelfeldt, D. Dimitrovski, and L. B. Madsen, “Orientation-dependent ionization yields from strong-field ionization of fixed-in-space linear and asymmetric top molecules,” J. Phys. B 45, 015101 (2012).
    [Crossref]
  21. S. F. Zhao, C. Jin, A. T. Le, T. F. Jiang, and C. D. Lin, “Analysis of angular dependence of strong-field tunneling ionization for CO2,” Phys. Rev. A 80, 051402 (2009).
    [Crossref]
  22. S. Petretti, Y. V. Vanne, A. Saenz, A. Castro, and P. Decleva, “Alignment-Dependent Ionization of N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  104, 223001 (2010).
    [Crossref]
  23. R. Johansen, K. G. Bay, L. Christensen, J. Thøgersen, D. Dimitrovski, L. B. Madsen, and H. Stapelfeldt, “Alignment-dependent strong-field ionization yields of carbonyl sulfide molecules induced by mid-infrared laser pulses,” J. Phys. B 49, 205601 (2016).
    [Crossref]
  24. V. P. Majety and A. Scrinzi, “Dynamic Exchange in the Strong Field Ionization of Molecules,” Phys. Rev. Lett.  115, 103002 (2015).
    [Crossref] [PubMed]
  25. M. D. Śpiewanowski and L. B. Madsen, “Alignment-and orientation-dependent strong-field ionization of molecules: Field-induced orbital distortion effects,” Phys. Rev. A 91, 043406 (2015).
    [Crossref]
  26. G. L. Kamta and A. D. Bandrauk, “Three-dimensional time-profile analysis of high-order harmonic generation in H2+,” Phys. Rev. A 71, 053407 (2005).
    [Crossref]
  27. T. K. Kjeldsen, L. B. Madsen, and J. P. Hansen, “Ab initio studies of strong-field ionization of arbitrarily oriented H2+ molecules,” Phys. Rev. A.  74, 035402 (2006).
    [Crossref]
  28. S. Petretti, Á. Magaña, A. Saenz, and P. Decleva, “Wavelength-and alignment-dependent photoionization of N2 and O2,” Phys. Rev. A.  94, 053411 (2016).
    [Crossref]
  29. D. A. Telnov and S. I. Chu, “Ab initio study of the orientation effects in multiphoton ionization and high-order harmonic generation from the ground and excited electronic states of H2+,” Phys. Rev. A 76, 043412 (2007).
    [Crossref]
  30. B. Zhang, J. M. Yuan, and Z. X. Zhao, “Alignment-dependent ionization of Hharmonic generation from the ground and excited electronic states of H2+: From multiphoton ionization to tunneling ionization,” Phys. Rev. A 85, 033421 (2012).
    [Crossref]
  31. D. B. Milošević, “Strong-field approximation for ionization of a diatomic molecule by a strong laser field,” Phys. Rev. A 74, 063404 (2006).
    [Crossref]
  32. B. Zhang and Z. X. Zhao, “Strong-field approximation for the ionization of N2 and CO2,” Phys. Rev. A 82, 035401 (2010).
    [Crossref]
  33. S. Selstø, M. Førre, J. P. Hansen, and L. B. Madsen, “Strong Orientation Effects in Ionization of H2+ by Short, Intense, High-Frequency Light Pulses,” Phys. Rev. Lett.  95, 093002 (2005).
    [Crossref]
  34. S. L. Hu, J. Chen, X. L. Hao, and W. D. Li, “Effect of low-energy electron interference on strong-field molecular ionization,” Phys. Rev. A 93, 023424 (2016).
    [Crossref]
  35. J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature (London) 432, 867 (2004).
    [Crossref]
  36. S. L. Hu, Z. X. Zhao, and T. Y. Shi, “B-spline one-center method for molecular Hartree-Fock calculations,” Int. J. Quan. Chem. 114, 441 (2014).
    [Crossref]
  37. S. L. Hu, Z. X. Zhao, J. Chen, and T. Y. Shi, “Ionization dynamics of C2H2 in intense laser fields: Time-dependent Hartree-Fock approach,” Phys. Rev. A 92, 053409 (2015).
    [Crossref]
  38. H. Bachau, E. Cormier, P. Decleva, J. E. Hansen, and F. Martín, “Applications of B-splines in atomic and molecular physics,” Rep. Pro. Phys.  64, 1815 (2001).
    [Crossref]
  39. Y. J. Jin, X. M. Tong, and N. Toshima, “Enhanced ionization of hydrogen molecular ions in an intense laser field via a multiphoton resonance,” Phys. Rev. A 81, 013408 (2010).
    [Crossref]
  40. L. V. Keldysh, “Ionization in the field of a strong electromagnetic wave,” Zh. Eksp. Teor. Fiz. 47, 1945 (1964) [Sov. Phys. JETP 20, 1307 (1965)].
  41. F. H. M. Faisal, “Multiple absorption of laser photons by atoms,” J. Phys. B 6, L89 (1973).
    [Crossref]
  42. H. R. Reiss, “Effect of an intense electromagnetic field on a weakly bound system,” Phys. Rev. A 22, 1786 (1980).
    [Crossref]
  43. J. Chen and S. G. Chen, “Gauge problem in molecular high-order harmonic generation,” Phys. Rev. A 75, 041402 (2007).
    [Crossref]
  44. W. Becker, J. Chen, S. G. Chen, and D. B. Milošević, “Dressed-state strong-field approximation for laser-induced molecular ionization,” Phys. Rev. A 76, 033403 (2007).
    [Crossref]
  45. Y. Li, X. Y. Jia, S. P. Yang, W. D. Li, and J. Chen, “S-matrix study on alignment dependence of single ionization of molecular ions with different active orbitals,” Chin. Phys. B 19, 063302 (2010).
    [Crossref]

2018 (1)

2016 (6)

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
[Crossref]

J. Heslar, D. A. Telnov, and S. I. Chu, “Enhancement of VUV and EUV generation by field-controlled resonance structures of diatomic molecules,” Phys. Rev. A 93, 063401 (2016).
[Crossref]

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
[Crossref] [PubMed]

R. Johansen, K. G. Bay, L. Christensen, J. Thøgersen, D. Dimitrovski, L. B. Madsen, and H. Stapelfeldt, “Alignment-dependent strong-field ionization yields of carbonyl sulfide molecules induced by mid-infrared laser pulses,” J. Phys. B 49, 205601 (2016).
[Crossref]

S. Petretti, Á. Magaña, A. Saenz, and P. Decleva, “Wavelength-and alignment-dependent photoionization of N2 and O2,” Phys. Rev. A.  94, 053411 (2016).
[Crossref]

S. L. Hu, J. Chen, X. L. Hao, and W. D. Li, “Effect of low-energy electron interference on strong-field molecular ionization,” Phys. Rev. A 93, 023424 (2016).
[Crossref]

2015 (3)

S. L. Hu, Z. X. Zhao, J. Chen, and T. Y. Shi, “Ionization dynamics of C2H2 in intense laser fields: Time-dependent Hartree-Fock approach,” Phys. Rev. A 92, 053409 (2015).
[Crossref]

V. P. Majety and A. Scrinzi, “Dynamic Exchange in the Strong Field Ionization of Molecules,” Phys. Rev. Lett.  115, 103002 (2015).
[Crossref] [PubMed]

M. D. Śpiewanowski and L. B. Madsen, “Alignment-and orientation-dependent strong-field ionization of molecules: Field-induced orbital distortion effects,” Phys. Rev. A 91, 043406 (2015).
[Crossref]

2014 (2)

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

S. L. Hu, Z. X. Zhao, and T. Y. Shi, “B-spline one-center method for molecular Hartree-Fock calculations,” Int. J. Quan. Chem. 114, 441 (2014).
[Crossref]

2013 (1)

Y. C. Han and L. B. Madsen, “Internuclear-distance dependence of the role of excited states in high-order-harmonic generation of H2+,” Phys. Rev. A 87, 043404 (2013).
[Crossref]

2012 (2)

J. L. Hansen, L. Holmegaard, J. H. Nielsen, H. Stapelfeldt, D. Dimitrovski, and L. B. Madsen, “Orientation-dependent ionization yields from strong-field ionization of fixed-in-space linear and asymmetric top molecules,” J. Phys. B 45, 015101 (2012).
[Crossref]

B. Zhang, J. M. Yuan, and Z. X. Zhao, “Alignment-dependent ionization of Hharmonic generation from the ground and excited electronic states of H2+: From multiphoton ionization to tunneling ionization,” Phys. Rev. A 85, 033421 (2012).
[Crossref]

2011 (1)

X. B. Bian and A. D. Bandrauk, “Nonadiabatic molecular high-order harmonic generation from polar molecules: Spectral redshift,” Phys. Rev. A 83, 041403 (2011).
[Crossref]

2010 (6)

B. Zhang and Z. X. Zhao, “Strong-field approximation for the ionization of N2 and CO2,” Phys. Rev. A 82, 035401 (2010).
[Crossref]

S. Petretti, Y. V. Vanne, A. Saenz, A. Castro, and P. Decleva, “Alignment-Dependent Ionization of N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  104, 223001 (2010).
[Crossref]

X. B. Bian and A. D. Bandrauk, “Multichannel Molecular High-Order Harmonic Generation from Asymmetric Diatomic Molecules,” Phys. Rev. Lett.  105, 093903 (2010).
[Crossref] [PubMed]

Y. C. Han and L. B. Madsen, “Minimum in the high-order harmonic generation spectrum from molecules: role of excited states,” J. Phys. B 43, 225601 (2010).
[Crossref]

Y. J. Jin, X. M. Tong, and N. Toshima, “Enhanced ionization of hydrogen molecular ions in an intense laser field via a multiphoton resonance,” Phys. Rev. A 81, 013408 (2010).
[Crossref]

Y. Li, X. Y. Jia, S. P. Yang, W. D. Li, and J. Chen, “S-matrix study on alignment dependence of single ionization of molecular ions with different active orbitals,” Chin. Phys. B 19, 063302 (2010).
[Crossref]

2009 (1)

S. F. Zhao, C. Jin, A. T. Le, T. F. Jiang, and C. D. Lin, “Analysis of angular dependence of strong-field tunneling ionization for CO2,” Phys. Rev. A 80, 051402 (2009).
[Crossref]

2008 (1)

B. B. Wang, J. Chen, J. Liu, Z. C. Yan, and P. M. Fu, “Attosecond-pulse-controlled high-order harmonic generation in ultrashort laser fields,” Phys. Rev. A 78, 023413 (2008).
[Crossref]

2007 (4)

D. Pavičić, K. F. Lee, D. M. Rayner, P. B. Corkum, and D. M. Villeneuve, “Direct Measurement of the Angular Dependence of Ionization for N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  98, 243001 (2007).
[Crossref]

D. A. Telnov and S. I. Chu, “Ab initio study of the orientation effects in multiphoton ionization and high-order harmonic generation from the ground and excited electronic states of H2+,” Phys. Rev. A 76, 043412 (2007).
[Crossref]

J. Chen and S. G. Chen, “Gauge problem in molecular high-order harmonic generation,” Phys. Rev. A 75, 041402 (2007).
[Crossref]

W. Becker, J. Chen, S. G. Chen, and D. B. Milošević, “Dressed-state strong-field approximation for laser-induced molecular ionization,” Phys. Rev. A 76, 033403 (2007).
[Crossref]

2006 (2)

T. K. Kjeldsen, L. B. Madsen, and J. P. Hansen, “Ab initio studies of strong-field ionization of arbitrarily oriented H2+ molecules,” Phys. Rev. A.  74, 035402 (2006).
[Crossref]

D. B. Milošević, “Strong-field approximation for ionization of a diatomic molecule by a strong laser field,” Phys. Rev. A 74, 063404 (2006).
[Crossref]

2005 (4)

S. Selstø, M. Førre, J. P. Hansen, and L. B. Madsen, “Strong Orientation Effects in Ionization of H2+ by Short, Intense, High-Frequency Light Pulses,” Phys. Rev. Lett.  95, 093002 (2005).
[Crossref]

G. L. Kamta and A. D. Bandrauk, “Three-dimensional time-profile analysis of high-order harmonic generation in H2+,” Phys. Rev. A 71, 053407 (2005).
[Crossref]

P. M. Paul, T. O. Clatterbuck, C. Lyngå, P. Colosimo, L. F. DiMauro, P. Agostini, and K. C. Kulander, “Enhanced High Harmonic Generation from an Optically Prepared Excited Medium,” Phys. Rev. Lett.  94, 113906 (2005).
[Crossref] [PubMed]

G. L. Kamta and A. D. Bandrauk, “Phase Dependence of Enhanced Ionization in Asymmetric Molecules,” Phys. Rev. Lett.  94, 203003 (2005).
[Crossref] [PubMed]

2004 (1)

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature (London) 432, 867 (2004).
[Crossref]

2003 (2)

H. Stapelfeldt and T. Seideman, “Colloquium: Aligning molecules with strong laser pulses,” Rev. Mod. Phys.  75, 543 (2003).
[Crossref]

I. V. Litvinyuk, K. F. Lee, P. W. Dooley, D. M. Rayner, D. M. Villeneuve, and P. B. Corkum, “Alignment-Dependent Strong Field Ionization of Molecules,” Phys. Rev. Lett.  90, 233003 (2003).
[Crossref] [PubMed]

2001 (1)

H. Bachau, E. Cormier, P. Decleva, J. E. Hansen, and F. Martín, “Applications of B-splines in atomic and molecular physics,” Rep. Pro. Phys.  64, 1815 (2001).
[Crossref]

2000 (1)

A. Saenz, “Enhanced ionization of molecular hydrogen in very strong fields,” Phys. Rev. A 61, 051402 (2000).
[Crossref]

1999 (1)

H. G. Muller, “Numerical simulation of high-order above-threshold-ionization enhancement in argon,” Phys. Rev. A 60, 1341 (1999).
[Crossref]

1996 (1)

E. Constant, H. Stapelfeldt, and P. B. Corkum, “Observation of Enhanced Ionization of Molecular Ions in Intense Laser Fields,” Phys. Rev. Lett.  76, 4140 (1996).
[Crossref] [PubMed]

1995 (1)

T. Zuo and A. D. Bandrauk, “Charge-resonance-enhanced ionization of diatomic molecular ions by intense lasers,” Phys. Rev. A 52, R2511 (1995).
[Crossref] [PubMed]

1980 (1)

H. R. Reiss, “Effect of an intense electromagnetic field on a weakly bound system,” Phys. Rev. A 22, 1786 (1980).
[Crossref]

1973 (1)

F. H. M. Faisal, “Multiple absorption of laser photons by atoms,” J. Phys. B 6, L89 (1973).
[Crossref]

1964 (1)

L. V. Keldysh, “Ionization in the field of a strong electromagnetic wave,” Zh. Eksp. Teor. Fiz. 47, 1945 (1964) [Sov. Phys. JETP 20, 1307 (1965)].

Agostini, P.

P. M. Paul, T. O. Clatterbuck, C. Lyngå, P. Colosimo, L. F. DiMauro, P. Agostini, and K. C. Kulander, “Enhanced High Harmonic Generation from an Optically Prepared Excited Medium,” Phys. Rev. Lett.  94, 113906 (2005).
[Crossref] [PubMed]

Bachau, H.

H. Bachau, E. Cormier, P. Decleva, J. E. Hansen, and F. Martín, “Applications of B-splines in atomic and molecular physics,” Rep. Pro. Phys.  64, 1815 (2001).
[Crossref]

Bandrauk, A. D.

X. B. Bian and A. D. Bandrauk, “Nonadiabatic molecular high-order harmonic generation from polar molecules: Spectral redshift,” Phys. Rev. A 83, 041403 (2011).
[Crossref]

X. B. Bian and A. D. Bandrauk, “Multichannel Molecular High-Order Harmonic Generation from Asymmetric Diatomic Molecules,” Phys. Rev. Lett.  105, 093903 (2010).
[Crossref] [PubMed]

G. L. Kamta and A. D. Bandrauk, “Phase Dependence of Enhanced Ionization in Asymmetric Molecules,” Phys. Rev. Lett.  94, 203003 (2005).
[Crossref] [PubMed]

G. L. Kamta and A. D. Bandrauk, “Three-dimensional time-profile analysis of high-order harmonic generation in H2+,” Phys. Rev. A 71, 053407 (2005).
[Crossref]

T. Zuo and A. D. Bandrauk, “Charge-resonance-enhanced ionization of diatomic molecular ions by intense lasers,” Phys. Rev. A 52, R2511 (1995).
[Crossref] [PubMed]

Baudisch, M.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

Bay, K. G.

R. Johansen, K. G. Bay, L. Christensen, J. Thøgersen, D. Dimitrovski, L. B. Madsen, and H. Stapelfeldt, “Alignment-dependent strong-field ionization yields of carbonyl sulfide molecules induced by mid-infrared laser pulses,” J. Phys. B 49, 205601 (2016).
[Crossref]

Beaulieu, S.

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
[Crossref] [PubMed]

Becker, W.

W. Becker, J. Chen, S. G. Chen, and D. B. Milošević, “Dressed-state strong-field approximation for laser-induced molecular ionization,” Phys. Rev. A 76, 033403 (2007).
[Crossref]

Bian, X. B.

X. B. Bian and A. D. Bandrauk, “Nonadiabatic molecular high-order harmonic generation from polar molecules: Spectral redshift,” Phys. Rev. A 83, 041403 (2011).
[Crossref]

X. B. Bian and A. D. Bandrauk, “Multichannel Molecular High-Order Harmonic Generation from Asymmetric Diatomic Molecules,” Phys. Rev. Lett.  105, 093903 (2010).
[Crossref] [PubMed]

Biegert, J.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

Burgdörfer, J.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

Camp, S.

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
[Crossref] [PubMed]

Castro, A.

S. Petretti, Y. V. Vanne, A. Saenz, A. Castro, and P. Decleva, “Alignment-Dependent Ionization of N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  104, 223001 (2010).
[Crossref]

Catoire, F.

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
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Chen, J.

B. B. Li, S. L. Hu, X. T. He, and J. Chen, “Resonance-like enhancement in high-order above threshold ionization of atoms and molecules in intense laser fields,” Opt. Express 26, 13012 (2018).
[Crossref] [PubMed]

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
[Crossref]

S. L. Hu, J. Chen, X. L. Hao, and W. D. Li, “Effect of low-energy electron interference on strong-field molecular ionization,” Phys. Rev. A 93, 023424 (2016).
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S. L. Hu, Z. X. Zhao, J. Chen, and T. Y. Shi, “Ionization dynamics of C2H2 in intense laser fields: Time-dependent Hartree-Fock approach,” Phys. Rev. A 92, 053409 (2015).
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Y. Li, X. Y. Jia, S. P. Yang, W. D. Li, and J. Chen, “S-matrix study on alignment dependence of single ionization of molecular ions with different active orbitals,” Chin. Phys. B 19, 063302 (2010).
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B. B. Wang, J. Chen, J. Liu, Z. C. Yan, and P. M. Fu, “Attosecond-pulse-controlled high-order harmonic generation in ultrashort laser fields,” Phys. Rev. A 78, 023413 (2008).
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W. Becker, J. Chen, S. G. Chen, and D. B. Milošević, “Dressed-state strong-field approximation for laser-induced molecular ionization,” Phys. Rev. A 76, 033403 (2007).
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J. Chen and S. G. Chen, “Gauge problem in molecular high-order harmonic generation,” Phys. Rev. A 75, 041402 (2007).
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Chen, S. G.

J. Chen and S. G. Chen, “Gauge problem in molecular high-order harmonic generation,” Phys. Rev. A 75, 041402 (2007).
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W. Becker, J. Chen, S. G. Chen, and D. B. Milošević, “Dressed-state strong-field approximation for laser-induced molecular ionization,” Phys. Rev. A 76, 033403 (2007).
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R. Johansen, K. G. Bay, L. Christensen, J. Thøgersen, D. Dimitrovski, L. B. Madsen, and H. Stapelfeldt, “Alignment-dependent strong-field ionization yields of carbonyl sulfide molecules induced by mid-infrared laser pulses,” J. Phys. B 49, 205601 (2016).
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J. Heslar, D. A. Telnov, and S. I. Chu, “Enhancement of VUV and EUV generation by field-controlled resonance structures of diatomic molecules,” Phys. Rev. A 93, 063401 (2016).
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P. M. Paul, T. O. Clatterbuck, C. Lyngå, P. Colosimo, L. F. DiMauro, P. Agostini, and K. C. Kulander, “Enhanced High Harmonic Generation from an Optically Prepared Excited Medium,” Phys. Rev. Lett.  94, 113906 (2005).
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S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
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D. Pavičić, K. F. Lee, D. M. Rayner, P. B. Corkum, and D. M. Villeneuve, “Direct Measurement of the Angular Dependence of Ionization for N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  98, 243001 (2007).
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J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature (London) 432, 867 (2004).
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I. V. Litvinyuk, K. F. Lee, P. W. Dooley, D. M. Rayner, D. M. Villeneuve, and P. B. Corkum, “Alignment-Dependent Strong Field Ionization of Molecules,” Phys. Rev. Lett.  90, 233003 (2003).
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H. Bachau, E. Cormier, P. Decleva, J. E. Hansen, and F. Martín, “Applications of B-splines in atomic and molecular physics,” Rep. Pro. Phys.  64, 1815 (2001).
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S. Petretti, Á. Magaña, A. Saenz, and P. Decleva, “Wavelength-and alignment-dependent photoionization of N2 and O2,” Phys. Rev. A.  94, 053411 (2016).
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H. Bachau, E. Cormier, P. Decleva, J. E. Hansen, and F. Martín, “Applications of B-splines in atomic and molecular physics,” Rep. Pro. Phys.  64, 1815 (2001).
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Descamps, D.

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
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DiMauro, L. F.

P. M. Paul, T. O. Clatterbuck, C. Lyngå, P. Colosimo, L. F. DiMauro, P. Agostini, and K. C. Kulander, “Enhanced High Harmonic Generation from an Optically Prepared Excited Medium,” Phys. Rev. Lett.  94, 113906 (2005).
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Dimitrovski, D.

R. Johansen, K. G. Bay, L. Christensen, J. Thøgersen, D. Dimitrovski, L. B. Madsen, and H. Stapelfeldt, “Alignment-dependent strong-field ionization yields of carbonyl sulfide molecules induced by mid-infrared laser pulses,” J. Phys. B 49, 205601 (2016).
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J. L. Hansen, L. Holmegaard, J. H. Nielsen, H. Stapelfeldt, D. Dimitrovski, and L. B. Madsen, “Orientation-dependent ionization yields from strong-field ionization of fixed-in-space linear and asymmetric top molecules,” J. Phys. B 45, 015101 (2012).
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Ding, D. J.

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
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Dong, J. W.

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
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Dooley, P. W.

I. V. Litvinyuk, K. F. Lee, P. W. Dooley, D. M. Rayner, D. M. Villeneuve, and P. B. Corkum, “Alignment-Dependent Strong Field Ionization of Molecules,” Phys. Rev. Lett.  90, 233003 (2003).
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S. Selstø, M. Førre, J. P. Hansen, and L. B. Madsen, “Strong Orientation Effects in Ionization of H2+ by Short, Intense, High-Frequency Light Pulses,” Phys. Rev. Lett.  95, 093002 (2005).
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Fu, P. M.

B. B. Wang, J. Chen, J. Liu, Z. C. Yan, and P. M. Fu, “Attosecond-pulse-controlled high-order harmonic generation in ultrashort laser fields,” Phys. Rev. A 78, 023413 (2008).
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Gaarde, M. B.

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
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Y. C. Han and L. B. Madsen, “Internuclear-distance dependence of the role of excited states in high-order-harmonic generation of H2+,” Phys. Rev. A 87, 043404 (2013).
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Y. C. Han and L. B. Madsen, “Minimum in the high-order harmonic generation spectrum from molecules: role of excited states,” J. Phys. B 43, 225601 (2010).
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Hansen, J. E.

H. Bachau, E. Cormier, P. Decleva, J. E. Hansen, and F. Martín, “Applications of B-splines in atomic and molecular physics,” Rep. Pro. Phys.  64, 1815 (2001).
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Hansen, J. L.

J. L. Hansen, L. Holmegaard, J. H. Nielsen, H. Stapelfeldt, D. Dimitrovski, and L. B. Madsen, “Orientation-dependent ionization yields from strong-field ionization of fixed-in-space linear and asymmetric top molecules,” J. Phys. B 45, 015101 (2012).
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Hansen, J. P.

T. K. Kjeldsen, L. B. Madsen, and J. P. Hansen, “Ab initio studies of strong-field ionization of arbitrarily oriented H2+ molecules,” Phys. Rev. A.  74, 035402 (2006).
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S. Selstø, M. Førre, J. P. Hansen, and L. B. Madsen, “Strong Orientation Effects in Ionization of H2+ by Short, Intense, High-Frequency Light Pulses,” Phys. Rev. Lett.  95, 093002 (2005).
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Hao, X. L.

S. L. Hu, J. Chen, X. L. Hao, and W. D. Li, “Effect of low-energy electron interference on strong-field molecular ionization,” Phys. Rev. A 93, 023424 (2016).
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He, X. T.

Hemmer, M.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
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Heslar, J.

J. Heslar, D. A. Telnov, and S. I. Chu, “Enhancement of VUV and EUV generation by field-controlled resonance structures of diatomic molecules,” Phys. Rev. A 93, 063401 (2016).
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Holmegaard, L.

J. L. Hansen, L. Holmegaard, J. H. Nielsen, H. Stapelfeldt, D. Dimitrovski, and L. B. Madsen, “Orientation-dependent ionization yields from strong-field ionization of fixed-in-space linear and asymmetric top molecules,” J. Phys. B 45, 015101 (2012).
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Hu, S. L.

B. B. Li, S. L. Hu, X. T. He, and J. Chen, “Resonance-like enhancement in high-order above threshold ionization of atoms and molecules in intense laser fields,” Opt. Express 26, 13012 (2018).
[Crossref] [PubMed]

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
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S. L. Hu, J. Chen, X. L. Hao, and W. D. Li, “Effect of low-energy electron interference on strong-field molecular ionization,” Phys. Rev. A 93, 023424 (2016).
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S. L. Hu, Z. X. Zhao, J. Chen, and T. Y. Shi, “Ionization dynamics of C2H2 in intense laser fields: Time-dependent Hartree-Fock approach,” Phys. Rev. A 92, 053409 (2015).
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Y. Li, X. Y. Jia, S. P. Yang, W. D. Li, and J. Chen, “S-matrix study on alignment dependence of single ionization of molecular ions with different active orbitals,” Chin. Phys. B 19, 063302 (2010).
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S. F. Zhao, C. Jin, A. T. Le, T. F. Jiang, and C. D. Lin, “Analysis of angular dependence of strong-field tunneling ionization for CO2,” Phys. Rev. A 80, 051402 (2009).
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Jin, C.

S. F. Zhao, C. Jin, A. T. Le, T. F. Jiang, and C. D. Lin, “Analysis of angular dependence of strong-field tunneling ionization for CO2,” Phys. Rev. A 80, 051402 (2009).
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Jin, M. X.

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
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R. Johansen, K. G. Bay, L. Christensen, J. Thøgersen, D. Dimitrovski, L. B. Madsen, and H. Stapelfeldt, “Alignment-dependent strong-field ionization yields of carbonyl sulfide molecules induced by mid-infrared laser pulses,” J. Phys. B 49, 205601 (2016).
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Kieffer, J. C.

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature (London) 432, 867 (2004).
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Kjeldsen, T. K.

T. K. Kjeldsen, L. B. Madsen, and J. P. Hansen, “Ab initio studies of strong-field ionization of arbitrarily oriented H2+ molecules,” Phys. Rev. A.  74, 035402 (2006).
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Kulander, K. C.

P. M. Paul, T. O. Clatterbuck, C. Lyngå, P. Colosimo, L. F. DiMauro, P. Agostini, and K. C. Kulander, “Enhanced High Harmonic Generation from an Optically Prepared Excited Medium,” Phys. Rev. Lett.  94, 113906 (2005).
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Le, A. T.

S. F. Zhao, C. Jin, A. T. Le, T. F. Jiang, and C. D. Lin, “Analysis of angular dependence of strong-field tunneling ionization for CO2,” Phys. Rev. A 80, 051402 (2009).
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Lee, K. F.

D. Pavičić, K. F. Lee, D. M. Rayner, P. B. Corkum, and D. M. Villeneuve, “Direct Measurement of the Angular Dependence of Ionization for N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  98, 243001 (2007).
[Crossref]

I. V. Litvinyuk, K. F. Lee, P. W. Dooley, D. M. Rayner, D. M. Villeneuve, and P. B. Corkum, “Alignment-Dependent Strong Field Ionization of Molecules,” Phys. Rev. Lett.  90, 233003 (2003).
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S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
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B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
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J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature (London) 432, 867 (2004).
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Li, B. B.

Li, W. D.

S. L. Hu, J. Chen, X. L. Hao, and W. D. Li, “Effect of low-energy electron interference on strong-field molecular ionization,” Phys. Rev. A 93, 023424 (2016).
[Crossref]

Y. Li, X. Y. Jia, S. P. Yang, W. D. Li, and J. Chen, “S-matrix study on alignment dependence of single ionization of molecular ions with different active orbitals,” Chin. Phys. B 19, 063302 (2010).
[Crossref]

Li, Y.

Y. Li, X. Y. Jia, S. P. Yang, W. D. Li, and J. Chen, “S-matrix study on alignment dependence of single ionization of molecular ions with different active orbitals,” Chin. Phys. B 19, 063302 (2010).
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Lian, Y.

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
[Crossref]

Lin, C. D.

S. F. Zhao, C. Jin, A. T. Le, T. F. Jiang, and C. D. Lin, “Analysis of angular dependence of strong-field tunneling ionization for CO2,” Phys. Rev. A 80, 051402 (2009).
[Crossref]

Litvinyuk, I. V.

I. V. Litvinyuk, K. F. Lee, P. W. Dooley, D. M. Rayner, D. M. Villeneuve, and P. B. Corkum, “Alignment-Dependent Strong Field Ionization of Molecules,” Phys. Rev. Lett.  90, 233003 (2003).
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Liu, J.

B. B. Wang, J. Chen, J. Liu, Z. C. Yan, and P. M. Fu, “Attosecond-pulse-controlled high-order harmonic generation in ultrashort laser fields,” Phys. Rev. A 78, 023413 (2008).
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Lv, H.

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
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Lyngå, C.

P. M. Paul, T. O. Clatterbuck, C. Lyngå, P. Colosimo, L. F. DiMauro, P. Agostini, and K. C. Kulander, “Enhanced High Harmonic Generation from an Optically Prepared Excited Medium,” Phys. Rev. Lett.  94, 113906 (2005).
[Crossref] [PubMed]

Madsen, L. B.

R. Johansen, K. G. Bay, L. Christensen, J. Thøgersen, D. Dimitrovski, L. B. Madsen, and H. Stapelfeldt, “Alignment-dependent strong-field ionization yields of carbonyl sulfide molecules induced by mid-infrared laser pulses,” J. Phys. B 49, 205601 (2016).
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M. D. Śpiewanowski and L. B. Madsen, “Alignment-and orientation-dependent strong-field ionization of molecules: Field-induced orbital distortion effects,” Phys. Rev. A 91, 043406 (2015).
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Y. C. Han and L. B. Madsen, “Internuclear-distance dependence of the role of excited states in high-order-harmonic generation of H2+,” Phys. Rev. A 87, 043404 (2013).
[Crossref]

J. L. Hansen, L. Holmegaard, J. H. Nielsen, H. Stapelfeldt, D. Dimitrovski, and L. B. Madsen, “Orientation-dependent ionization yields from strong-field ionization of fixed-in-space linear and asymmetric top molecules,” J. Phys. B 45, 015101 (2012).
[Crossref]

Y. C. Han and L. B. Madsen, “Minimum in the high-order harmonic generation spectrum from molecules: role of excited states,” J. Phys. B 43, 225601 (2010).
[Crossref]

T. K. Kjeldsen, L. B. Madsen, and J. P. Hansen, “Ab initio studies of strong-field ionization of arbitrarily oriented H2+ molecules,” Phys. Rev. A.  74, 035402 (2006).
[Crossref]

S. Selstø, M. Førre, J. P. Hansen, and L. B. Madsen, “Strong Orientation Effects in Ionization of H2+ by Short, Intense, High-Frequency Light Pulses,” Phys. Rev. Lett.  95, 093002 (2005).
[Crossref]

Magaña, Á.

S. Petretti, Á. Magaña, A. Saenz, and P. Decleva, “Wavelength-and alignment-dependent photoionization of N2 and O2,” Phys. Rev. A.  94, 053411 (2016).
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Mairesse, Y.

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
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H. Bachau, E. Cormier, P. Decleva, J. E. Hansen, and F. Martín, “Applications of B-splines in atomic and molecular physics,” Rep. Pro. Phys.  64, 1815 (2001).
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Miloševic, D. B.

W. Becker, J. Chen, S. G. Chen, and D. B. Milošević, “Dressed-state strong-field approximation for laser-induced molecular ionization,” Phys. Rev. A 76, 033403 (2007).
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D. B. Milošević, “Strong-field approximation for ionization of a diatomic molecule by a strong laser field,” Phys. Rev. A 74, 063404 (2006).
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Moshammer, R.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
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J. L. Hansen, L. Holmegaard, J. H. Nielsen, H. Stapelfeldt, D. Dimitrovski, and L. B. Madsen, “Orientation-dependent ionization yields from strong-field ionization of fixed-in-space linear and asymmetric top molecules,” J. Phys. B 45, 015101 (2012).
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Niikura, H.

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature (London) 432, 867 (2004).
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Paul, P. M.

P. M. Paul, T. O. Clatterbuck, C. Lyngå, P. Colosimo, L. F. DiMauro, P. Agostini, and K. C. Kulander, “Enhanced High Harmonic Generation from an Optically Prepared Excited Medium,” Phys. Rev. Lett.  94, 113906 (2005).
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Pavicic, D.

D. Pavičić, K. F. Lee, D. M. Rayner, P. B. Corkum, and D. M. Villeneuve, “Direct Measurement of the Angular Dependence of Ionization for N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  98, 243001 (2007).
[Crossref]

Pépin, H.

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature (London) 432, 867 (2004).
[Crossref]

Petit, S.

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
[Crossref] [PubMed]

Petretti, S.

S. Petretti, Á. Magaña, A. Saenz, and P. Decleva, “Wavelength-and alignment-dependent photoionization of N2 and O2,” Phys. Rev. A.  94, 053411 (2016).
[Crossref]

S. Petretti, Y. V. Vanne, A. Saenz, A. Castro, and P. Decleva, “Alignment-Dependent Ionization of N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  104, 223001 (2010).
[Crossref]

Pullen, M. G.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

Rayner, D. M.

D. Pavičić, K. F. Lee, D. M. Rayner, P. B. Corkum, and D. M. Villeneuve, “Direct Measurement of the Angular Dependence of Ionization for N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  98, 243001 (2007).
[Crossref]

I. V. Litvinyuk, K. F. Lee, P. W. Dooley, D. M. Rayner, D. M. Villeneuve, and P. B. Corkum, “Alignment-Dependent Strong Field Ionization of Molecules,” Phys. Rev. Lett.  90, 233003 (2003).
[Crossref] [PubMed]

Reiss, H. R.

H. R. Reiss, “Effect of an intense electromagnetic field on a weakly bound system,” Phys. Rev. A 22, 1786 (1980).
[Crossref]

Saenz, A.

S. Petretti, Á. Magaña, A. Saenz, and P. Decleva, “Wavelength-and alignment-dependent photoionization of N2 and O2,” Phys. Rev. A.  94, 053411 (2016).
[Crossref]

S. Petretti, Y. V. Vanne, A. Saenz, A. Castro, and P. Decleva, “Alignment-Dependent Ionization of N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  104, 223001 (2010).
[Crossref]

A. Saenz, “Enhanced ionization of molecular hydrogen in very strong fields,” Phys. Rev. A 61, 051402 (2000).
[Crossref]

Schafer, K. J.

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
[Crossref] [PubMed]

Schröter, C. D.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

Scrinzi, A.

V. P. Majety and A. Scrinzi, “Dynamic Exchange in the Strong Field Ionization of Molecules,” Phys. Rev. Lett.  115, 103002 (2015).
[Crossref] [PubMed]

Seideman, T.

H. Stapelfeldt and T. Seideman, “Colloquium: Aligning molecules with strong laser pulses,” Rev. Mod. Phys.  75, 543 (2003).
[Crossref]

Selstø, S.

S. Selstø, M. Førre, J. P. Hansen, and L. B. Madsen, “Strong Orientation Effects in Ionization of H2+ by Short, Intense, High-Frequency Light Pulses,” Phys. Rev. Lett.  95, 093002 (2005).
[Crossref]

Senftleben, A.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

Shi, T. Y.

S. L. Hu, Z. X. Zhao, J. Chen, and T. Y. Shi, “Ionization dynamics of C2H2 in intense laser fields: Time-dependent Hartree-Fock approach,” Phys. Rev. A 92, 053409 (2015).
[Crossref]

S. L. Hu, Z. X. Zhao, and T. Y. Shi, “B-spline one-center method for molecular Hartree-Fock calculations,” Int. J. Quan. Chem. 114, 441 (2014).
[Crossref]

Spiewanowski, M. D.

M. D. Śpiewanowski and L. B. Madsen, “Alignment-and orientation-dependent strong-field ionization of molecules: Field-induced orbital distortion effects,” Phys. Rev. A 91, 043406 (2015).
[Crossref]

Stapelfeldt, H.

R. Johansen, K. G. Bay, L. Christensen, J. Thøgersen, D. Dimitrovski, L. B. Madsen, and H. Stapelfeldt, “Alignment-dependent strong-field ionization yields of carbonyl sulfide molecules induced by mid-infrared laser pulses,” J. Phys. B 49, 205601 (2016).
[Crossref]

J. L. Hansen, L. Holmegaard, J. H. Nielsen, H. Stapelfeldt, D. Dimitrovski, and L. B. Madsen, “Orientation-dependent ionization yields from strong-field ionization of fixed-in-space linear and asymmetric top molecules,” J. Phys. B 45, 015101 (2012).
[Crossref]

H. Stapelfeldt and T. Seideman, “Colloquium: Aligning molecules with strong laser pulses,” Rev. Mod. Phys.  75, 543 (2003).
[Crossref]

E. Constant, H. Stapelfeldt, and P. B. Corkum, “Observation of Enhanced Ionization of Molecular Ions in Intense Laser Fields,” Phys. Rev. Lett.  76, 4140 (1996).
[Crossref] [PubMed]

Telnov, D. A.

J. Heslar, D. A. Telnov, and S. I. Chu, “Enhancement of VUV and EUV generation by field-controlled resonance structures of diatomic molecules,” Phys. Rev. A 93, 063401 (2016).
[Crossref]

D. A. Telnov and S. I. Chu, “Ab initio study of the orientation effects in multiphoton ionization and high-order harmonic generation from the ground and excited electronic states of H2+,” Phys. Rev. A 76, 043412 (2007).
[Crossref]

Thøgersen, J.

R. Johansen, K. G. Bay, L. Christensen, J. Thøgersen, D. Dimitrovski, L. B. Madsen, and H. Stapelfeldt, “Alignment-dependent strong-field ionization yields of carbonyl sulfide molecules induced by mid-infrared laser pulses,” J. Phys. B 49, 205601 (2016).
[Crossref]

Tong, X. M.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

Y. J. Jin, X. M. Tong, and N. Toshima, “Enhanced ionization of hydrogen molecular ions in an intense laser field via a multiphoton resonance,” Phys. Rev. A 81, 013408 (2010).
[Crossref]

Toshima, N.

Y. J. Jin, X. M. Tong, and N. Toshima, “Enhanced ionization of hydrogen molecular ions in an intense laser field via a multiphoton resonance,” Phys. Rev. A 81, 013408 (2010).
[Crossref]

Ullrich, J.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

Vanne, Y. V.

S. Petretti, Y. V. Vanne, A. Saenz, A. Castro, and P. Decleva, “Alignment-Dependent Ionization of N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  104, 223001 (2010).
[Crossref]

Villeneuve, D. M.

D. Pavičić, K. F. Lee, D. M. Rayner, P. B. Corkum, and D. M. Villeneuve, “Direct Measurement of the Angular Dependence of Ionization for N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  98, 243001 (2007).
[Crossref]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature (London) 432, 867 (2004).
[Crossref]

I. V. Litvinyuk, K. F. Lee, P. W. Dooley, D. M. Rayner, D. M. Villeneuve, and P. B. Corkum, “Alignment-Dependent Strong Field Ionization of Molecules,” Phys. Rev. Lett.  90, 233003 (2003).
[Crossref] [PubMed]

Wang, B. B.

B. B. Wang, J. Chen, J. Liu, Z. C. Yan, and P. M. Fu, “Attosecond-pulse-controlled high-order harmonic generation in ultrashort laser fields,” Phys. Rev. A 78, 023413 (2008).
[Crossref]

Wanie, V.

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
[Crossref] [PubMed]

Wolter, B.

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

Xu, H. F.

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
[Crossref]

Yan, Z. C.

B. B. Wang, J. Chen, J. Liu, Z. C. Yan, and P. M. Fu, “Attosecond-pulse-controlled high-order harmonic generation in ultrashort laser fields,” Phys. Rev. A 78, 023413 (2008).
[Crossref]

Yang, S. P.

Y. Li, X. Y. Jia, S. P. Yang, W. D. Li, and J. Chen, “S-matrix study on alignment dependence of single ionization of molecular ions with different active orbitals,” Chin. Phys. B 19, 063302 (2010).
[Crossref]

Yang, T. X.

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
[Crossref]

Yuan, J. M.

B. Zhang, J. M. Yuan, and Z. X. Zhao, “Alignment-dependent ionization of Hharmonic generation from the ground and excited electronic states of H2+: From multiphoton ionization to tunneling ionization,” Phys. Rev. A 85, 033421 (2012).
[Crossref]

Zeidler, D.

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature (London) 432, 867 (2004).
[Crossref]

Zhang, B.

B. Zhang, J. M. Yuan, and Z. X. Zhao, “Alignment-dependent ionization of Hharmonic generation from the ground and excited electronic states of H2+: From multiphoton ionization to tunneling ionization,” Phys. Rev. A 85, 033421 (2012).
[Crossref]

B. Zhang and Z. X. Zhao, “Strong-field approximation for the ionization of N2 and CO2,” Phys. Rev. A 82, 035401 (2010).
[Crossref]

Zhao, L.

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
[Crossref]

Zhao, S. F.

S. F. Zhao, C. Jin, A. T. Le, T. F. Jiang, and C. D. Lin, “Analysis of angular dependence of strong-field tunneling ionization for CO2,” Phys. Rev. A 80, 051402 (2009).
[Crossref]

Zhao, Z. X.

S. L. Hu, Z. X. Zhao, J. Chen, and T. Y. Shi, “Ionization dynamics of C2H2 in intense laser fields: Time-dependent Hartree-Fock approach,” Phys. Rev. A 92, 053409 (2015).
[Crossref]

S. L. Hu, Z. X. Zhao, and T. Y. Shi, “B-spline one-center method for molecular Hartree-Fock calculations,” Int. J. Quan. Chem. 114, 441 (2014).
[Crossref]

B. Zhang, J. M. Yuan, and Z. X. Zhao, “Alignment-dependent ionization of Hharmonic generation from the ground and excited electronic states of H2+: From multiphoton ionization to tunneling ionization,” Phys. Rev. A 85, 033421 (2012).
[Crossref]

B. Zhang and Z. X. Zhao, “Strong-field approximation for the ionization of N2 and CO2,” Phys. Rev. A 82, 035401 (2010).
[Crossref]

Zuo, T.

T. Zuo and A. D. Bandrauk, “Charge-resonance-enhanced ionization of diatomic molecular ions by intense lasers,” Phys. Rev. A 52, R2511 (1995).
[Crossref] [PubMed]

Chin. Phys. B (1)

Y. Li, X. Y. Jia, S. P. Yang, W. D. Li, and J. Chen, “S-matrix study on alignment dependence of single ionization of molecular ions with different active orbitals,” Chin. Phys. B 19, 063302 (2010).
[Crossref]

Int. J. Quan. Chem. (1)

S. L. Hu, Z. X. Zhao, and T. Y. Shi, “B-spline one-center method for molecular Hartree-Fock calculations,” Int. J. Quan. Chem. 114, 441 (2014).
[Crossref]

J. Phys. B (4)

J. L. Hansen, L. Holmegaard, J. H. Nielsen, H. Stapelfeldt, D. Dimitrovski, and L. B. Madsen, “Orientation-dependent ionization yields from strong-field ionization of fixed-in-space linear and asymmetric top molecules,” J. Phys. B 45, 015101 (2012).
[Crossref]

R. Johansen, K. G. Bay, L. Christensen, J. Thøgersen, D. Dimitrovski, L. B. Madsen, and H. Stapelfeldt, “Alignment-dependent strong-field ionization yields of carbonyl sulfide molecules induced by mid-infrared laser pulses,” J. Phys. B 49, 205601 (2016).
[Crossref]

F. H. M. Faisal, “Multiple absorption of laser photons by atoms,” J. Phys. B 6, L89 (1973).
[Crossref]

Y. C. Han and L. B. Madsen, “Minimum in the high-order harmonic generation spectrum from molecules: role of excited states,” J. Phys. B 43, 225601 (2010).
[Crossref]

Nature (London) (1)

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature (London) 432, 867 (2004).
[Crossref]

Opt. Express (1)

Phys. Rev. A (24)

Y. J. Jin, X. M. Tong, and N. Toshima, “Enhanced ionization of hydrogen molecular ions in an intense laser field via a multiphoton resonance,” Phys. Rev. A 81, 013408 (2010).
[Crossref]

B. Wolter, C. Lemell, M. Baudisch, M. G. Pullen, X. M. Tong, M. Hemmer, A. Senftleben, C. D. Schröter, J. Ullrich, R. Moshammer, J. Biegert, and J. Burgdörfer, “Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields,” Phys. Rev. A 90, 063424 (2014).
[Crossref]

L. Zhao, J. W. Dong, H. Lv, T. X. Yang, Y. Lian, M. X. Jin, H. F. Xu, D. J. Ding, S. L. Hu, and J. Chen, “Ellipticity dependence of neutral Rydberg excitation of atoms in strong laser fields,” Phys. Rev. A 94, 053403 (2016).
[Crossref]

H. G. Muller, “Numerical simulation of high-order above-threshold-ionization enhancement in argon,” Phys. Rev. A 60, 1341 (1999).
[Crossref]

Y. C. Han and L. B. Madsen, “Internuclear-distance dependence of the role of excited states in high-order-harmonic generation of H2+,” Phys. Rev. A 87, 043404 (2013).
[Crossref]

B. B. Wang, J. Chen, J. Liu, Z. C. Yan, and P. M. Fu, “Attosecond-pulse-controlled high-order harmonic generation in ultrashort laser fields,” Phys. Rev. A 78, 023413 (2008).
[Crossref]

J. Heslar, D. A. Telnov, and S. I. Chu, “Enhancement of VUV and EUV generation by field-controlled resonance structures of diatomic molecules,” Phys. Rev. A 93, 063401 (2016).
[Crossref]

X. B. Bian and A. D. Bandrauk, “Nonadiabatic molecular high-order harmonic generation from polar molecules: Spectral redshift,” Phys. Rev. A 83, 041403 (2011).
[Crossref]

M. D. Śpiewanowski and L. B. Madsen, “Alignment-and orientation-dependent strong-field ionization of molecules: Field-induced orbital distortion effects,” Phys. Rev. A 91, 043406 (2015).
[Crossref]

G. L. Kamta and A. D. Bandrauk, “Three-dimensional time-profile analysis of high-order harmonic generation in H2+,” Phys. Rev. A 71, 053407 (2005).
[Crossref]

T. K. Kjeldsen, L. B. Madsen, and J. P. Hansen, “Ab initio studies of strong-field ionization of arbitrarily oriented H2+ molecules,” Phys. Rev. A.  74, 035402 (2006).
[Crossref]

S. Petretti, Á. Magaña, A. Saenz, and P. Decleva, “Wavelength-and alignment-dependent photoionization of N2 and O2,” Phys. Rev. A.  94, 053411 (2016).
[Crossref]

D. A. Telnov and S. I. Chu, “Ab initio study of the orientation effects in multiphoton ionization and high-order harmonic generation from the ground and excited electronic states of H2+,” Phys. Rev. A 76, 043412 (2007).
[Crossref]

B. Zhang, J. M. Yuan, and Z. X. Zhao, “Alignment-dependent ionization of Hharmonic generation from the ground and excited electronic states of H2+: From multiphoton ionization to tunneling ionization,” Phys. Rev. A 85, 033421 (2012).
[Crossref]

D. B. Milošević, “Strong-field approximation for ionization of a diatomic molecule by a strong laser field,” Phys. Rev. A 74, 063404 (2006).
[Crossref]

B. Zhang and Z. X. Zhao, “Strong-field approximation for the ionization of N2 and CO2,” Phys. Rev. A 82, 035401 (2010).
[Crossref]

H. R. Reiss, “Effect of an intense electromagnetic field on a weakly bound system,” Phys. Rev. A 22, 1786 (1980).
[Crossref]

J. Chen and S. G. Chen, “Gauge problem in molecular high-order harmonic generation,” Phys. Rev. A 75, 041402 (2007).
[Crossref]

W. Becker, J. Chen, S. G. Chen, and D. B. Milošević, “Dressed-state strong-field approximation for laser-induced molecular ionization,” Phys. Rev. A 76, 033403 (2007).
[Crossref]

T. Zuo and A. D. Bandrauk, “Charge-resonance-enhanced ionization of diatomic molecular ions by intense lasers,” Phys. Rev. A 52, R2511 (1995).
[Crossref] [PubMed]

A. Saenz, “Enhanced ionization of molecular hydrogen in very strong fields,” Phys. Rev. A 61, 051402 (2000).
[Crossref]

S. F. Zhao, C. Jin, A. T. Le, T. F. Jiang, and C. D. Lin, “Analysis of angular dependence of strong-field tunneling ionization for CO2,” Phys. Rev. A 80, 051402 (2009).
[Crossref]

S. L. Hu, Z. X. Zhao, J. Chen, and T. Y. Shi, “Ionization dynamics of C2H2 in intense laser fields: Time-dependent Hartree-Fock approach,” Phys. Rev. A 92, 053409 (2015).
[Crossref]

S. L. Hu, J. Chen, X. L. Hao, and W. D. Li, “Effect of low-energy electron interference on strong-field molecular ionization,” Phys. Rev. A 93, 023424 (2016).
[Crossref]

Phys. Rev. Lett (10)

P. M. Paul, T. O. Clatterbuck, C. Lyngå, P. Colosimo, L. F. DiMauro, P. Agostini, and K. C. Kulander, “Enhanced High Harmonic Generation from an Optically Prepared Excited Medium,” Phys. Rev. Lett.  94, 113906 (2005).
[Crossref] [PubMed]

S. Petretti, Y. V. Vanne, A. Saenz, A. Castro, and P. Decleva, “Alignment-Dependent Ionization of N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  104, 223001 (2010).
[Crossref]

V. P. Majety and A. Scrinzi, “Dynamic Exchange in the Strong Field Ionization of Molecules,” Phys. Rev. Lett.  115, 103002 (2015).
[Crossref] [PubMed]

E. Constant, H. Stapelfeldt, and P. B. Corkum, “Observation of Enhanced Ionization of Molecular Ions in Intense Laser Fields,” Phys. Rev. Lett.  76, 4140 (1996).
[Crossref] [PubMed]

G. L. Kamta and A. D. Bandrauk, “Phase Dependence of Enhanced Ionization in Asymmetric Molecules,” Phys. Rev. Lett.  94, 203003 (2005).
[Crossref] [PubMed]

S. Selstø, M. Førre, J. P. Hansen, and L. B. Madsen, “Strong Orientation Effects in Ionization of H2+ by Short, Intense, High-Frequency Light Pulses,” Phys. Rev. Lett.  95, 093002 (2005).
[Crossref]

S. Beaulieu, S. Camp, D. Descamps, A. Comby, V. Wanie, S. Petit, F. Légaré, K. J. Schafer, M. B. Gaarde, F. Catoire, and Y. Mairesse, “Role of Excited States In High-order Harmonic Generation,” Phys. Rev. Lett.  117, 203001 (2016).
[Crossref] [PubMed]

I. V. Litvinyuk, K. F. Lee, P. W. Dooley, D. M. Rayner, D. M. Villeneuve, and P. B. Corkum, “Alignment-Dependent Strong Field Ionization of Molecules,” Phys. Rev. Lett.  90, 233003 (2003).
[Crossref] [PubMed]

D. Pavičić, K. F. Lee, D. M. Rayner, P. B. Corkum, and D. M. Villeneuve, “Direct Measurement of the Angular Dependence of Ionization for N2, O2, and CO2 in Intense Laser Fields,” Phys. Rev. Lett.  98, 243001 (2007).
[Crossref]

X. B. Bian and A. D. Bandrauk, “Multichannel Molecular High-Order Harmonic Generation from Asymmetric Diatomic Molecules,” Phys. Rev. Lett.  105, 093903 (2010).
[Crossref] [PubMed]

Rep. Pro. Phys (1)

H. Bachau, E. Cormier, P. Decleva, J. E. Hansen, and F. Martín, “Applications of B-splines in atomic and molecular physics,” Rep. Pro. Phys.  64, 1815 (2001).
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Rev. Mod. Phys (1)

H. Stapelfeldt and T. Seideman, “Colloquium: Aligning molecules with strong laser pulses,” Rev. Mod. Phys.  75, 543 (2003).
[Crossref]

Zh. Eksp. Teor. Fiz. (1)

L. V. Keldysh, “Ionization in the field of a strong electromagnetic wave,” Zh. Eksp. Teor. Fiz. 47, 1945 (1964) [Sov. Phys. JETP 20, 1307 (1965)].

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Figures (7)

Fig. 1
Fig. 1 Two-dimensional distribution of the wave function for different orbitals. (a): 1σg; (b): 1σu; (c): 2σg; (d): 1πu .
Fig. 2
Fig. 2 Alignment-dependent ionization probabilities of H 2 + for the initial state 1πu as a function of the laser intensity calculated by different methods. (a): TDSE; (b): SFA without considering 2σg state in Eq. 7 (see text). I0=1014W/cm2.
Fig. 3
Fig. 3 Time-varying probabilities of 1πu and 2σg, and other excited states calculated by TDSE with increasing alignment angle β for different laser intensities. (a)–(c): 0.3I0, (d)–(f): 0.5I0. T = 2π/ω and I0=1014W/cm2.
Fig. 4
Fig. 4 Time-varying probabilities of 2σu and 3σg states obtained by TDSE as a function of alignment angles β for different laser intensities. (a)–(c): 0.3I0, (d)–(f): 0.5I0. T = 2π/ω and I0=1014W/cm2.
Fig. 5
Fig. 5 Simulations of H 2 + via TDSE by excluding 2σg state in the basis expansion with the initial state of 1πu. (a): Alignment-dependent ionization probability. (b) and (c): Time-varying probabilities of other excited states with increasing alignment angles for different laser intensities. T = 2π/ω and I0=1014W/cm2.
Fig. 6
Fig. 6 Alignment-dependent ionization probabilities calculated by SFA with increasing laser intensities for the initial state 1πu (2σg state is taken into account in Eq. (7)). (a): The ionization yields of 1πu state. (b): The ionization probabilities of 2σg state. (c): Sum of the ionization probabilities of 1πu and 2σg states. I0=1014W/cm2.
Fig. 7
Fig. 7 Time-dependent probabilities of 1πu and 2σg states calculated by SFA with increasing alignment angles for different laser intensities (2σg state is taken into account in Eq. (7)). (a)–(c): 0.3I0; (d)–(f): 0.5I0. T = 2π/ω and I0=1014W/cm2.

Tables (1)

Tables Icon

Table 1 The eigenvalue (a.u.) of the bound states for magnetic quantum numbers m=0 and 1, and the internuclear separation R=2 a.u.

Equations (11)

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i t Ψ ( r , t ) = [ H 1 ( r ) r E ( t ) ] Ψ ( r , t ) .
H 1 ( r ) = 1 2 r 2 r r 2 r + 1 2 r 2 [ ξ ( 1 ξ 2 ) ξ m 2 1 ξ 2 ] λ = 0 r < λ r > λ + 1 P λ ( ξ ) λ = 0 ( 1 ) λ r < λ r > λ + 1 P λ ( ξ ) .
H t = r E ( t ) ( ξ cos β + 1 ξ 2 sin β cos φ ) ,
H 1 ( r ) ψ j ( r , ξ , φ ) = ϵ j ψ j ( r , ξ , φ ) .
ψ j ( r , ξ , φ ) = 1 2 π μ v C μ v j B μ k ( r ) r B v k ( ξ ) ( 1 ξ 2 ) | m | 2 e i m φ ,
Ψ ( r , t ) = j C j ( t ) ψ j ( r , ξ , φ ) .
Ψ ( r , t ) = e i I p t [ a 0 ( t ) | 0 > + a 1 ( t ) | 1 > + d P b ( P , t ) | P > ] ,
| 0 > = c 1 [ ϕ 2 p x ( r + R / 2 ) + ϕ 2 p x ( r R / 2 ) + 0.1 ( ϕ 2 p x ( r + R / 2 ) + ϕ 2 p x ( r R / 2 ) ) ] , | 1 > = c 2 [ ϕ 2 s ( r + R / 2 ) + ϕ 2 s ( r R / 2 ) ] .
i a ˙ 0 ( t ) = E ( t ) [ a 0 ( t ) d 00 + a 1 ( t ) d 01 ] , i a ˙ 1 ( t ) = E ( t ) [ a 0 ( t ) d 10 + a 1 ( t ) d 11 ] + ( I p 1 I p 2 ) a 1 ( t ) .
W s = 2 π N e n = n 0 | T p n s | 2 δ ( E p + I p n ω ) d P ,
T p n s = 1 T 0 T d t exp [ i ( E 0 2 8 ω 3 sin 2 ω t + E 0 e P ω 2 sin ω t ) ] × exp [ i ( P 2 2 + I p + U p ) t ] E 0 sin ω t ϕ ~ [ P + A ( t ) ] a s ( t ) .

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