Abstract

We experimentally demonstrate the macroscopic evolution of quantum-path distributions in harmonic emission with spatial and spectral resolution from an argon gas jet, and obviously observe that the spatial profiles of harmonics are gradually split into two components (the red and blue shifts) when the driving laser intensity is increased. Moreover, the red and blue shifts in quantum-path distributions are experimentally traced and clarified in the spatial and spectral domain by choosing the focal position. These results give a more comprehensive understanding and therefore a better control of harmonic emission.

© 2014 Optical Society of America

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  1. P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
    [CrossRef] [PubMed]
  2. M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
    [CrossRef] [PubMed]
  3. G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
    [CrossRef] [PubMed]
  4. E. J. Takahashi, P. Lan, O. D. Mücke, Y. Nabekawa, and K. Midorikawa, “Infrared two-color multicycle laser field synthesis for generating an intense attosecond pulse,” Phys. Rev. Lett.104(23), 233901 (2010).
    [CrossRef] [PubMed]
  5. K. Zhao, Q. Zhang, M. Chini, Y. Wu, X. Wang, and Z. Chang, “Tailoring a 67 attosecond pulse through advantageous phase-mismatch,” Opt. Lett.37(18), 3891–3893 (2012).
    [CrossRef] [PubMed]
  6. P. B. Corkum, “Plasma perspective on strong field multiphoton ionization,” Phys. Rev. Lett.71(13), 1994–1997 (1993).
    [CrossRef] [PubMed]
  7. K. J. Schafer, B. Yang, L. F. DiMauro, and K. C. Kulander, “Above threshold ionization beyond the high harmonic cutoff,” Phys. Rev. Lett.70(11), 1599–1602 (1993).
    [CrossRef] [PubMed]
  8. M. Lewenstein, P. Salières, and A. L’Huillier, “Phase of the atomic polarization in high-order harmonic generation,” Phys. Rev. A52(6), 4747–4754 (1995).
    [CrossRef] [PubMed]
  9. P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
    [CrossRef] [PubMed]
  10. M. B. Gaarde, F. Salin, E. Constant, Ph. Balcou, K. J. Schafer, K. C. Kulander, and A. L’Huillier, “Spatiotemporal separation of high harmonic radiation into two quantum path components,” Phys. Rev. A59(2), 1367–1373 (1999).
    [CrossRef]
  11. A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
    [CrossRef] [PubMed]
  12. P. Liu, Z. Zeng, Y. Li, S. Zhao, X. Li, R. Li, and Z. Xu, “Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam,” Phys. Rev. A79(6), 063823 (2009).
    [CrossRef]
  13. C. M. Heyl, J. Güdde, U. Höfer, and A. L’Huillier, “Spectrally resolved maker fringes in high-order harmonic generation,” Phys. Rev. Lett.107(3), 033903 (2011).
    [CrossRef] [PubMed]
  14. E. Benedetti, J.-P. Caumes, G. Sansone, S. Stagira, C. Vozzi, and M. Nisoli, “Frequency chirp of long electron quantum paths in high-order harmonic generation,” Opt. Express14(6), 2242–2249 (2006).
    [CrossRef] [PubMed]
  15. X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).
  16. C. Jin, A.-T. Le, and C. D. Lin, “Medium propagation effects in high-order harmonic generation of Ar and N2,” Phys. Rev. A83(2), 023411 (2011).
    [CrossRef]
  17. N. Milosevic, A. Scrinzi, and T. Brabec, “Numerical characterization of high harmonic attosecond pulses,” Phys. Rev. Lett.88(9), 093905 (2002).
    [CrossRef] [PubMed]
  18. M. B. Gaarde and K. J. Schafer, “Quantum path distributions for high-order harmonics in rare gas atoms,” Phys. Rev. A65(3), 031406 (2002).
    [CrossRef]

2012 (1)

2011 (2)

C. Jin, A.-T. Le, and C. D. Lin, “Medium propagation effects in high-order harmonic generation of Ar and N2,” Phys. Rev. A83(2), 023411 (2011).
[CrossRef]

C. M. Heyl, J. Güdde, U. Höfer, and A. L’Huillier, “Spectrally resolved maker fringes in high-order harmonic generation,” Phys. Rev. Lett.107(3), 033903 (2011).
[CrossRef] [PubMed]

2010 (1)

E. J. Takahashi, P. Lan, O. D. Mücke, Y. Nabekawa, and K. Midorikawa, “Infrared two-color multicycle laser field synthesis for generating an intense attosecond pulse,” Phys. Rev. Lett.104(23), 233901 (2010).
[CrossRef] [PubMed]

2009 (2)

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

P. Liu, Z. Zeng, Y. Li, S. Zhao, X. Li, R. Li, and Z. Xu, “Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam,” Phys. Rev. A79(6), 063823 (2009).
[CrossRef]

2008 (1)

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

2006 (2)

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

E. Benedetti, J.-P. Caumes, G. Sansone, S. Stagira, C. Vozzi, and M. Nisoli, “Frequency chirp of long electron quantum paths in high-order harmonic generation,” Opt. Express14(6), 2242–2249 (2006).
[CrossRef] [PubMed]

2002 (2)

N. Milosevic, A. Scrinzi, and T. Brabec, “Numerical characterization of high harmonic attosecond pulses,” Phys. Rev. Lett.88(9), 093905 (2002).
[CrossRef] [PubMed]

M. B. Gaarde and K. J. Schafer, “Quantum path distributions for high-order harmonics in rare gas atoms,” Phys. Rev. A65(3), 031406 (2002).
[CrossRef]

2001 (3)

P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
[CrossRef] [PubMed]

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

1999 (1)

M. B. Gaarde, F. Salin, E. Constant, Ph. Balcou, K. J. Schafer, K. C. Kulander, and A. L’Huillier, “Spatiotemporal separation of high harmonic radiation into two quantum path components,” Phys. Rev. A59(2), 1367–1373 (1999).
[CrossRef]

1995 (1)

M. Lewenstein, P. Salières, and A. L’Huillier, “Phase of the atomic polarization in high-order harmonic generation,” Phys. Rev. A52(6), 4747–4754 (1995).
[CrossRef] [PubMed]

1993 (2)

P. B. Corkum, “Plasma perspective on strong field multiphoton ionization,” Phys. Rev. Lett.71(13), 1994–1997 (1993).
[CrossRef] [PubMed]

K. J. Schafer, B. Yang, L. F. DiMauro, and K. C. Kulander, “Above threshold ionization beyond the high harmonic cutoff,” Phys. Rev. Lett.70(11), 1599–1602 (1993).
[CrossRef] [PubMed]

Agostini, P.

P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
[CrossRef] [PubMed]

Altucci, C.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

Augé, F.

P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
[CrossRef] [PubMed]

Auguste, T.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Avaldi, L.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

Balcou, Ph.

P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
[CrossRef] [PubMed]

M. B. Gaarde, F. Salin, E. Constant, Ph. Balcou, K. J. Schafer, K. C. Kulander, and A. L’Huillier, “Spatiotemporal separation of high harmonic radiation into two quantum path components,” Phys. Rev. A59(2), 1367–1373 (1999).
[CrossRef]

Becker, W.

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

Benedetti, E.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

E. Benedetti, J.-P. Caumes, G. Sansone, S. Stagira, C. Vozzi, and M. Nisoli, “Frequency chirp of long electron quantum paths in high-order harmonic generation,” Opt. Express14(6), 2242–2249 (2006).
[CrossRef] [PubMed]

Biegert, J.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Brabec, T.

N. Milosevic, A. Scrinzi, and T. Brabec, “Numerical characterization of high harmonic attosecond pulses,” Phys. Rev. Lett.88(9), 093905 (2002).
[CrossRef] [PubMed]

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Breger, P.

P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
[CrossRef] [PubMed]

Calegari, F.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

Carré, B.

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

Caumes, J. P.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Caumes, J.-P.

Chang, Z.

Chini, M.

Constant, E.

M. B. Gaarde, F. Salin, E. Constant, Ph. Balcou, K. J. Schafer, K. C. Kulander, and A. L’Huillier, “Spatiotemporal separation of high harmonic radiation into two quantum path components,” Phys. Rev. A59(2), 1367–1373 (1999).
[CrossRef]

Corkum, P.

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Corkum, P. B.

P. B. Corkum, “Plasma perspective on strong field multiphoton ionization,” Phys. Rev. Lett.71(13), 1994–1997 (1993).
[CrossRef] [PubMed]

Cormier, E.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

De Silvestri, S.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

DiMauro, L. F.

K. J. Schafer, B. Yang, L. F. DiMauro, and K. C. Kulander, “Above threshold ionization beyond the high harmonic cutoff,” Phys. Rev. Lett.70(11), 1599–1602 (1993).
[CrossRef] [PubMed]

Drescher, M.

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Flammini, R.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

Gaarde, M. B.

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

M. B. Gaarde and K. J. Schafer, “Quantum path distributions for high-order harmonics in rare gas atoms,” Phys. Rev. A65(3), 031406 (2002).
[CrossRef]

M. B. Gaarde, F. Salin, E. Constant, Ph. Balcou, K. J. Schafer, K. C. Kulander, and A. L’Huillier, “Spatiotemporal separation of high harmonic radiation into two quantum path components,” Phys. Rev. A59(2), 1367–1373 (1999).
[CrossRef]

Gallmann, L.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Georgadiou, E.

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

Grasbon, F.

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

Guandalini, A.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Güdde, J.

C. M. Heyl, J. Güdde, U. Höfer, and A. L’Huillier, “Spectrally resolved maker fringes in high-order harmonic generation,” Phys. Rev. Lett.107(3), 033903 (2011).
[CrossRef] [PubMed]

Guilbaud, O.

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

He, X.

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

Heinzmann, U.

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Hentschel, M.

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Heyl, C.

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

Heyl, C. M.

C. M. Heyl, J. Güdde, U. Höfer, and A. L’Huillier, “Spectrally resolved maker fringes in high-order harmonic generation,” Phys. Rev. Lett.107(3), 033903 (2011).
[CrossRef] [PubMed]

Höfer, U.

C. M. Heyl, J. Güdde, U. Höfer, and A. L’Huillier, “Spectrally resolved maker fringes in high-order harmonic generation,” Phys. Rev. Lett.107(3), 033903 (2011).
[CrossRef] [PubMed]

Holler, M.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Jin, C.

C. Jin, A.-T. Le, and C. D. Lin, “Medium propagation effects in high-order harmonic generation of Ar and N2,” Phys. Rev. A83(2), 023411 (2011).
[CrossRef]

Keller, U.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Kienberger, R.

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Kopold, R.

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

Krausz, F.

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Kulander, K. C.

M. B. Gaarde, F. Salin, E. Constant, Ph. Balcou, K. J. Schafer, K. C. Kulander, and A. L’Huillier, “Spatiotemporal separation of high harmonic radiation into two quantum path components,” Phys. Rev. A59(2), 1367–1373 (1999).
[CrossRef]

K. J. Schafer, B. Yang, L. F. DiMauro, and K. C. Kulander, “Above threshold ionization beyond the high harmonic cutoff,” Phys. Rev. Lett.70(11), 1599–1602 (1993).
[CrossRef] [PubMed]

L’Huillier, A.

C. M. Heyl, J. Güdde, U. Höfer, and A. L’Huillier, “Spectrally resolved maker fringes in high-order harmonic generation,” Phys. Rev. Lett.107(3), 033903 (2011).
[CrossRef] [PubMed]

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

M. B. Gaarde, F. Salin, E. Constant, Ph. Balcou, K. J. Schafer, K. C. Kulander, and A. L’Huillier, “Spatiotemporal separation of high harmonic radiation into two quantum path components,” Phys. Rev. A59(2), 1367–1373 (1999).
[CrossRef]

M. Lewenstein, P. Salières, and A. L’Huillier, “Phase of the atomic polarization in high-order harmonic generation,” Phys. Rev. A52(6), 4747–4754 (1995).
[CrossRef] [PubMed]

Lan, P.

E. J. Takahashi, P. Lan, O. D. Mücke, Y. Nabekawa, and K. Midorikawa, “Infrared two-color multicycle laser field synthesis for generating an intense attosecond pulse,” Phys. Rev. Lett.104(23), 233901 (2010).
[CrossRef] [PubMed]

Le, A.-T.

C. Jin, A.-T. Le, and C. D. Lin, “Medium propagation effects in high-order harmonic generation of Ar and N2,” Phys. Rev. A83(2), 023411 (2011).
[CrossRef]

Le Déroff, L.

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

Lewenstein, M.

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

M. Lewenstein, P. Salières, and A. L’Huillier, “Phase of the atomic polarization in high-order harmonic generation,” Phys. Rev. A52(6), 4747–4754 (1995).
[CrossRef] [PubMed]

Li, R.

P. Liu, Z. Zeng, Y. Li, S. Zhao, X. Li, R. Li, and Z. Xu, “Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam,” Phys. Rev. A79(6), 063823 (2009).
[CrossRef]

Li, X.

P. Liu, Z. Zeng, Y. Li, S. Zhao, X. Li, R. Li, and Z. Xu, “Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam,” Phys. Rev. A79(6), 063823 (2009).
[CrossRef]

Li, Y.

P. Liu, Z. Zeng, Y. Li, S. Zhao, X. Li, R. Li, and Z. Xu, “Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam,” Phys. Rev. A79(6), 063823 (2009).
[CrossRef]

Lin, C. D.

C. Jin, A.-T. Le, and C. D. Lin, “Medium propagation effects in high-order harmonic generation of Ar and N2,” Phys. Rev. A83(2), 023411 (2011).
[CrossRef]

Liu, P.

P. Liu, Z. Zeng, Y. Li, S. Zhao, X. Li, R. Li, and Z. Xu, “Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam,” Phys. Rev. A79(6), 063823 (2009).
[CrossRef]

Midorikawa, K.

E. J. Takahashi, P. Lan, O. D. Mücke, Y. Nabekawa, and K. Midorikawa, “Infrared two-color multicycle laser field synthesis for generating an intense attosecond pulse,” Phys. Rev. Lett.104(23), 233901 (2010).
[CrossRef] [PubMed]

Milosevic, D. B.

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

Milosevic, N.

N. Milosevic, A. Scrinzi, and T. Brabec, “Numerical characterization of high harmonic attosecond pulses,” Phys. Rev. Lett.88(9), 093905 (2002).
[CrossRef] [PubMed]

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Miranda, M.

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

Monmayrant, A.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Mücke, O. D.

E. J. Takahashi, P. Lan, O. D. Mücke, Y. Nabekawa, and K. Midorikawa, “Infrared two-color multicycle laser field synthesis for generating an intense attosecond pulse,” Phys. Rev. Lett.104(23), 233901 (2010).
[CrossRef] [PubMed]

Muller, H. G.

P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
[CrossRef] [PubMed]

Mullot, G.

P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
[CrossRef] [PubMed]

Nabekawa, Y.

E. J. Takahashi, P. Lan, O. D. Mücke, Y. Nabekawa, and K. Midorikawa, “Infrared two-color multicycle laser field synthesis for generating an intense attosecond pulse,” Phys. Rev. Lett.104(23), 233901 (2010).
[CrossRef] [PubMed]

Nisoli, M.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

E. Benedetti, J.-P. Caumes, G. Sansone, S. Stagira, C. Vozzi, and M. Nisoli, “Frequency chirp of long electron quantum paths in high-order harmonic generation,” Opt. Express14(6), 2242–2249 (2006).
[CrossRef] [PubMed]

Paul, P. M.

P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
[CrossRef] [PubMed]

Paulus, G. G.

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

Persson, A.

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

Poletto, L.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

Rakowski, R.

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

Reider, G. A.

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Ruchon, T.

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

Salières, P.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

M. Lewenstein, P. Salières, and A. L’Huillier, “Phase of the atomic polarization in high-order harmonic generation,” Phys. Rev. A52(6), 4747–4754 (1995).
[CrossRef] [PubMed]

Salin, F.

M. B. Gaarde, F. Salin, E. Constant, Ph. Balcou, K. J. Schafer, K. C. Kulander, and A. L’Huillier, “Spatiotemporal separation of high harmonic radiation into two quantum path components,” Phys. Rev. A59(2), 1367–1373 (1999).
[CrossRef]

Sanpera, A.

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

Sansone, G.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

E. Benedetti, J.-P. Caumes, G. Sansone, S. Stagira, C. Vozzi, and M. Nisoli, “Frequency chirp of long electron quantum paths in high-order harmonic generation,” Opt. Express14(6), 2242–2249 (2006).
[CrossRef] [PubMed]

Schafer, K. J.

M. B. Gaarde and K. J. Schafer, “Quantum path distributions for high-order harmonics in rare gas atoms,” Phys. Rev. A65(3), 031406 (2002).
[CrossRef]

M. B. Gaarde, F. Salin, E. Constant, Ph. Balcou, K. J. Schafer, K. C. Kulander, and A. L’Huillier, “Spatiotemporal separation of high harmonic radiation into two quantum path components,” Phys. Rev. A59(2), 1367–1373 (1999).
[CrossRef]

K. J. Schafer, B. Yang, L. F. DiMauro, and K. C. Kulander, “Above threshold ionization beyond the high harmonic cutoff,” Phys. Rev. Lett.70(11), 1599–1602 (1993).
[CrossRef] [PubMed]

Schapper, F.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Schwenke, J.

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

Scrinzi, A.

N. Milosevic, A. Scrinzi, and T. Brabec, “Numerical characterization of high harmonic attosecond pulses,” Phys. Rev. Lett.88(9), 093905 (2002).
[CrossRef] [PubMed]

Spielmann, Ch.

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Stagira, S.

E. Benedetti, J.-P. Caumes, G. Sansone, S. Stagira, C. Vozzi, and M. Nisoli, “Frequency chirp of long electron quantum paths in high-order harmonic generation,” Opt. Express14(6), 2242–2249 (2006).
[CrossRef] [PubMed]

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

Takahashi, E. J.

E. J. Takahashi, P. Lan, O. D. Mücke, Y. Nabekawa, and K. Midorikawa, “Infrared two-color multicycle laser field synthesis for generating an intense attosecond pulse,” Phys. Rev. Lett.104(23), 233901 (2010).
[CrossRef] [PubMed]

Toma, E. S.

P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
[CrossRef] [PubMed]

Velotta, R.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

Villoresi, P.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

Vozzi, C.

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

E. Benedetti, J.-P. Caumes, G. Sansone, S. Stagira, C. Vozzi, and M. Nisoli, “Frequency chirp of long electron quantum paths in high-order harmonic generation,” Opt. Express14(6), 2242–2249 (2006).
[CrossRef] [PubMed]

Walmsley, I. A.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Walther, H.

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

Wang, X.

Wu, Y.

Wyatt, A. S.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Xu, Z.

P. Liu, Z. Zeng, Y. Li, S. Zhao, X. Li, R. Li, and Z. Xu, “Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam,” Phys. Rev. A79(6), 063823 (2009).
[CrossRef]

Yang, B.

K. J. Schafer, B. Yang, L. F. DiMauro, and K. C. Kulander, “Above threshold ionization beyond the high harmonic cutoff,” Phys. Rev. Lett.70(11), 1599–1602 (1993).
[CrossRef] [PubMed]

Zaïr, A.

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

Zeng, Z.

P. Liu, Z. Zeng, Y. Li, S. Zhao, X. Li, R. Li, and Z. Xu, “Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam,” Phys. Rev. A79(6), 063823 (2009).
[CrossRef]

Zhang, Q.

Zhao, K.

Zhao, S.

P. Liu, Z. Zeng, Y. Li, S. Zhao, X. Li, R. Li, and Z. Xu, “Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam,” Phys. Rev. A79(6), 063823 (2009).
[CrossRef]

Nature (1)

M. Hentschel, R. Kienberger, Ch. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature414(6863), 509–513 (2001).
[CrossRef] [PubMed]

Opt. Express (1)

Opt. Lett. (1)

Phys. Rev. A (6)

M. B. Gaarde and K. J. Schafer, “Quantum path distributions for high-order harmonics in rare gas atoms,” Phys. Rev. A65(3), 031406 (2002).
[CrossRef]

X. He, M. Miranda, J. Schwenke, O. Guilbaud, T. Ruchon, C. Heyl, E. Georgadiou, R. Rakowski, A. Persson, M. B. Gaarde, and A. L’Huillier, “Spatial and spectral properties of the high-order harmonic emission in argon for seeding application,” Phys. Rev. A79, 063829 (2009).

C. Jin, A.-T. Le, and C. D. Lin, “Medium propagation effects in high-order harmonic generation of Ar and N2,” Phys. Rev. A83(2), 023411 (2011).
[CrossRef]

M. Lewenstein, P. Salières, and A. L’Huillier, “Phase of the atomic polarization in high-order harmonic generation,” Phys. Rev. A52(6), 4747–4754 (1995).
[CrossRef] [PubMed]

M. B. Gaarde, F. Salin, E. Constant, Ph. Balcou, K. J. Schafer, K. C. Kulander, and A. L’Huillier, “Spatiotemporal separation of high harmonic radiation into two quantum path components,” Phys. Rev. A59(2), 1367–1373 (1999).
[CrossRef]

P. Liu, Z. Zeng, Y. Li, S. Zhao, X. Li, R. Li, and Z. Xu, “Quantum path selection and control in high-order harmonic generation using a spatially shaped laser beam,” Phys. Rev. A79(6), 063823 (2009).
[CrossRef]

Phys. Rev. Lett. (6)

C. M. Heyl, J. Güdde, U. Höfer, and A. L’Huillier, “Spectrally resolved maker fringes in high-order harmonic generation,” Phys. Rev. Lett.107(3), 033903 (2011).
[CrossRef] [PubMed]

A. Zaïr, M. Holler, A. Guandalini, F. Schapper, J. Biegert, L. Gallmann, U. Keller, A. S. Wyatt, A. Monmayrant, I. A. Walmsley, E. Cormier, T. Auguste, J. P. Caumes, and P. Salières, “Quantum Path interferences in high-order harmonic generation,” Phys. Rev. Lett.100(14), 143902 (2008).
[CrossRef] [PubMed]

P. B. Corkum, “Plasma perspective on strong field multiphoton ionization,” Phys. Rev. Lett.71(13), 1994–1997 (1993).
[CrossRef] [PubMed]

K. J. Schafer, B. Yang, L. F. DiMauro, and K. C. Kulander, “Above threshold ionization beyond the high harmonic cutoff,” Phys. Rev. Lett.70(11), 1599–1602 (1993).
[CrossRef] [PubMed]

N. Milosevic, A. Scrinzi, and T. Brabec, “Numerical characterization of high harmonic attosecond pulses,” Phys. Rev. Lett.88(9), 093905 (2002).
[CrossRef] [PubMed]

E. J. Takahashi, P. Lan, O. D. Mücke, Y. Nabekawa, and K. Midorikawa, “Infrared two-color multicycle laser field synthesis for generating an intense attosecond pulse,” Phys. Rev. Lett.104(23), 233901 (2010).
[CrossRef] [PubMed]

Science (3)

G. Sansone, E. Benedetti, F. Calegari, C. Vozzi, L. Avaldi, R. Flammini, L. Poletto, P. Villoresi, C. Altucci, R. Velotta, S. Stagira, S. De Silvestri, and M. Nisoli, “Isolated single-cycle attosecond pulses,” Science314(5798), 443–446 (2006).
[CrossRef] [PubMed]

P. Salières, B. Carré, L. Le Déroff, F. Grasbon, G. G. Paulus, H. Walther, R. Kopold, W. Becker, D. B. Milosević, A. Sanpera, and M. Lewenstein, “Feynman’s path-integral approach for intense-laser-atom interactions,” Science292(5518), 902–905 (2001).
[CrossRef] [PubMed]

P. M. Paul, E. S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, H. G. Muller, and P. Agostini, “Observation of a train of attosecond pulses from high harmonic generation,” Science292(5522), 1689–1692 (2001).
[CrossRef] [PubMed]

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Figures (4)

Fig. 1
Fig. 1

Experimentally measured spectral distributions of harmonics with the increasing laser intensity at two different focal positions of (a) Z = −3 mm and (b) Z = −6 mm. (c)-(d) The corresponding spatial distributions at the laser intensity of 2.5 × 1014 W/cm2.

Fig. 2
Fig. 2

Experimentally measured harmonic distributions (from 19th to 27th harmonics) with spatial and spectral resolution at different laser intensities and at the focal position of Z = −3 mm. One can see that the parent body in harmonic emission is the dominant one.

Fig. 3
Fig. 3

Experimentally measured harmonic distributions (from 19th to 27th harmonics) with spatial and spectral resolution at different laser intensities and at the focal position of Z = −6 mm. One can see that the sub body separated from the parent body is the dominant one.

Fig. 4
Fig. 4

Theoretically calculated spectral distributions with the increasing laser intensity for the 21st harmonic emission at the focal positions of (a) Z = −3 mm and (b) Z = + 6 mm. (c)-(d) The spectral distributions without the intense signal on the center (i.e., removes the short-path component signal), corresponding to (a) and (b).

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