Abstract

We generate tunable extreme ultraviolet emission through high-order frequency mixing between a strong near-infrared field and a weak shortwave-infrared pulse whose wavelength can be adjusted. In this two-color driving scheme, new harmonics appear in between the single-color harmonics at energies which are linear combinations of photons from the two pulses. We demonstrate the utility of tunable two-color harmonics by employing them for XUV transient absorption spectroscopy and time-resolved photoelectron spectroscopy. We show that the two-color harmonics can be used to address the dynamics associated with excited states in Helium and Oxygen which are inaccessible using single-color harmonics. Specifically, we show the ability to switch between excitation of 3p and 4p states in Helium, control of transitions to the light induced states, observe new four-wave-mixing emissions, and selectively address different principal and vibrational quantum numbers associated with Oxygen Rydberg states.

© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Full Article  |  PDF Article
OSA Recommended Articles
Bright attosecond soft X-ray pulse trains by transient phase-matching in two-color high-order harmonic generation

Bernd Schütte, Paul Weber, Katalin Kovács, Emeric Balogh, Balázs Major, Valer Tosa, Songhee Han, Marc J J Vrakking, Katalin Varjú, and Arnaud Rouzée
Opt. Express 23(26) 33947-33955 (2015)

Probing Rydberg-Rydberg interactions in N2 by ultrafast EUV-NIR photoelectron spectroscopy

Mizuho Fushitani, Yuto Toida, François Légaré, and Akiyoshi Hishikawa
Opt. Express 27(14) 19702-19711 (2019)

Two-photon resonant excitation of a doubly excited state in He atoms by high-harmonic pulses

Taro Sekikawa, Tatsuya Okamoto, Eisuke Haraguchi, Mikio Yamashita, and Takashi Nakajima
Opt. Express 16(26) 21922-21929 (2008)

References

  • View by:
  • |
  • |
  • |

  1. M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
    [Crossref]
  2. E. Gagnon, P. Ranitovic, X.-M. Tong, C. L. Cocke, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Soft x-ray-driven femtosecond molecular dynamics,” Science 317(5843), 1374–1378 (2007).
    [Crossref]
  3. H. Timmers, N. Shivaram, and A. Sandhu, “Ultrafast dynamics of neutral superexcited oxygen: A direct measurement of the competition between autoionization and predissociation,” Phys. Rev. Lett. 109(17), 173001 (2012).
    [Crossref]
  4. H. Timmers, Z. Li, N. Shivaram, R. Santra, O. Vendrell, and A. Sandhu, “Coherent electron hole dynamics near a conical intersection,” Phys. Rev. Lett. 113(11), 113003 (2014).
    [Crossref]
  5. E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
    [Crossref]
  6. H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
    [Crossref]
  7. C.-T. Liao, X. Li, D. J. Haxton, T. N. Rescigno, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Probing autoionizing states of molecular oxygen with xuv transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications,” Phys. Rev. A 95(4), 043427 (2017).
    [Crossref]
  8. W. Cao, E. R. Warrick, A. Fidler, S. R. Leone, and D. M. Neumark, “Near-resonant four-wave mixing of attosecond extreme-ultraviolet pulses with near-infrared pulses in neon: Detection of electronic coherences,” Phys. Rev. A 94(2), 021802 (2016).
    [Crossref]
  9. N. Harkema, J. E. Bækhøj, C.-T. Liao, M. B. Gaarde, K. J. Schafer, and A. Sandhu, “Controlling attosecond transient absorption with tunable, non-commensurate light fields,” Opt. Lett. 43(14), 3357–3360 (2018).
    [Crossref]
  10. H. J. B. Marroux, A. P. Fidler, D. M. Neumark, and S. R. Leone, “Multidimensional spectroscopy with attosecond extreme ultraviolet and shaped near-infrared pulses,” Sci. Adv. 4(9), eaau3783 (2018).
    [Crossref]
  11. M. D. Perry and J. K. Crane, “High-order harmonic emission from mixed fields,” Phys. Rev. A 48(6), R4051–R4054 (1993).
    [Crossref]
  12. G. Laurent, W. Cao, H. Li, Z. Wang, I. Ben-Itzhak, and C. L. Cocke, “Attosecond control of orbital parity mix interferences and the relative phase of even and odd harmonics in an attosecond pulse train,” Phys. Rev. Lett. 109(8), 083001 (2012).
    [Crossref]
  13. H. Eichmann, S. Meyer, K. Riepl, C. Momma, and B. Wellegehausen, “Generation of short-pulse tunable xuv radiation by high-order frequency mixing,” Phys. Rev. A 50(4), R2834–R2836 (1994).
    [Crossref]
  14. M. B. Gaarde, P. Antoine, A. Persson, B. Carré, A. L’Huillier, and C.-G. Wahlström, “High-order tunable sum and difference frequency mixing in the xuv region,” J. Phys. B: At., Mol. Opt. Phys. 29(5), L163–L168 (1996).
    [Crossref]
  15. K. A. Tran, K. B. Dinh, P. Hannaford, and L. Van Dao, “Phase-matched four-wave mixing in the extreme ultraviolet region,” J. Appl. Phys. 124(1), 015901 (2018).
    [Crossref]
  16. A. T. J. B. Eppink and D. H. Parker, “Velocity map imaging of ions and electrons using electrostatic lenses: Application in photoelectron and photofragment ion imaging of molecular oxygen,” Rev. Sci. Instrum. 68(9), 3477–3484 (1997).
    [Crossref]
  17. F. Calegari, C. Vozzi, M. Negro, G. Sansone, F. Frassetto, L. Poletto, P. Villoresi, M. Nisoli, S. D. Silvestri, and S. Stagira, “Efficient continuum generation exceeding 200 ev by intense ultrashort two-color driver,” Opt. Lett. 34(20), 3125–3127 (2009).
    [Crossref]
  18. 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]
  19. S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
    [Crossref]
  20. M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
    [Crossref]
  21. M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
    [Crossref]
  22. B. Doughty, C. J. Koh, L. H. Haber, and S. R. Leone, “Ultrafast decay of superexcited c $^{4}\Sigma _u^{-}$4Σu− nl$\sigma _g$σg$\nu$ν=0,1 states of $O_2$O2 probed with femtosecond photoelectron spectroscopy,” J. Chem. Phys. 136(21), 214303 (2012).
    [Crossref]
  23. K. Yoshino and Y. Tanaka, “Rydberg absorption series and ionization energies of the oxygen molecule,” J. Chem. Phys. 48(11), 4859–4867 (1968).
    [Crossref]
  24. M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
    [Crossref]
  25. A. S. Chatterley, F. Lackner, C. D. Pemmaraju, D. M. Neumark, S. R. Leone, and O. Gessner, “Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond xuv absorption spectroscopy,” J. Phys. Chem. A 120(48), 9509–9518 (2016).
    [Crossref]
  26. A. Plunkett, N. Harkema, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Ultrafast rydberg-state dissociation in oxygen: Identifying the role of multielectron excitations,” Phys. Rev. A 99(6), 063403 (2019).
    [Crossref]

2019 (1)

A. Plunkett, N. Harkema, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Ultrafast rydberg-state dissociation in oxygen: Identifying the role of multielectron excitations,” Phys. Rev. A 99(6), 063403 (2019).
[Crossref]

2018 (3)

N. Harkema, J. E. Bækhøj, C.-T. Liao, M. B. Gaarde, K. J. Schafer, and A. Sandhu, “Controlling attosecond transient absorption with tunable, non-commensurate light fields,” Opt. Lett. 43(14), 3357–3360 (2018).
[Crossref]

H. J. B. Marroux, A. P. Fidler, D. M. Neumark, and S. R. Leone, “Multidimensional spectroscopy with attosecond extreme ultraviolet and shaped near-infrared pulses,” Sci. Adv. 4(9), eaau3783 (2018).
[Crossref]

K. A. Tran, K. B. Dinh, P. Hannaford, and L. Van Dao, “Phase-matched four-wave mixing in the extreme ultraviolet region,” J. Appl. Phys. 124(1), 015901 (2018).
[Crossref]

2017 (2)

C.-T. Liao, X. Li, D. J. Haxton, T. N. Rescigno, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Probing autoionizing states of molecular oxygen with xuv transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications,” Phys. Rev. A 95(4), 043427 (2017).
[Crossref]

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

2016 (2)

A. S. Chatterley, F. Lackner, C. D. Pemmaraju, D. M. Neumark, S. R. Leone, and O. Gessner, “Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond xuv absorption spectroscopy,” J. Phys. Chem. A 120(48), 9509–9518 (2016).
[Crossref]

W. Cao, E. R. Warrick, A. Fidler, S. R. Leone, and D. M. Neumark, “Near-resonant four-wave mixing of attosecond extreme-ultraviolet pulses with near-infrared pulses in neon: Detection of electronic coherences,” Phys. Rev. A 94(2), 021802 (2016).
[Crossref]

2015 (1)

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

2014 (1)

H. Timmers, Z. Li, N. Shivaram, R. Santra, O. Vendrell, and A. Sandhu, “Coherent electron hole dynamics near a conical intersection,” Phys. Rev. Lett. 113(11), 113003 (2014).
[Crossref]

2013 (1)

M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
[Crossref]

2012 (4)

B. Doughty, C. J. Koh, L. H. Haber, and S. R. Leone, “Ultrafast decay of superexcited c $^{4}\Sigma _u^{-}$4Σu− nl$\sigma _g$σg$\nu$ν=0,1 states of $O_2$O2 probed with femtosecond photoelectron spectroscopy,” J. Chem. Phys. 136(21), 214303 (2012).
[Crossref]

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

G. Laurent, W. Cao, H. Li, Z. Wang, I. Ben-Itzhak, and C. L. Cocke, “Attosecond control of orbital parity mix interferences and the relative phase of even and odd harmonics in an attosecond pulse train,” Phys. Rev. Lett. 109(8), 083001 (2012).
[Crossref]

H. Timmers, N. Shivaram, and A. Sandhu, “Ultrafast dynamics of neutral superexcited oxygen: A direct measurement of the competition between autoionization and predissociation,” Phys. Rev. Lett. 109(17), 173001 (2012).
[Crossref]

2010 (3)

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]

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

2009 (1)

2007 (1)

E. Gagnon, P. Ranitovic, X.-M. Tong, C. L. Cocke, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Soft x-ray-driven femtosecond molecular dynamics,” Science 317(5843), 1374–1378 (2007).
[Crossref]

2001 (1)

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

1997 (1)

A. T. J. B. Eppink and D. H. Parker, “Velocity map imaging of ions and electrons using electrostatic lenses: Application in photoelectron and photofragment ion imaging of molecular oxygen,” Rev. Sci. Instrum. 68(9), 3477–3484 (1997).
[Crossref]

1996 (1)

M. B. Gaarde, P. Antoine, A. Persson, B. Carré, A. L’Huillier, and C.-G. Wahlström, “High-order tunable sum and difference frequency mixing in the xuv region,” J. Phys. B: At., Mol. Opt. Phys. 29(5), L163–L168 (1996).
[Crossref]

1994 (1)

H. Eichmann, S. Meyer, K. Riepl, C. Momma, and B. Wellegehausen, “Generation of short-pulse tunable xuv radiation by high-order frequency mixing,” Phys. Rev. A 50(4), R2834–R2836 (1994).
[Crossref]

1993 (1)

M. D. Perry and J. K. Crane, “High-order harmonic emission from mixed fields,” Phys. Rev. A 48(6), R4051–R4054 (1993).
[Crossref]

1968 (1)

K. Yoshino and Y. Tanaka, “Rydberg absorption series and ionization energies of the oxygen molecule,” J. Chem. Phys. 48(11), 4859–4867 (1968).
[Crossref]

Antoine, P.

M. B. Gaarde, P. Antoine, A. Persson, B. Carré, A. L’Huillier, and C.-G. Wahlström, “High-order tunable sum and difference frequency mixing in the xuv region,” J. Phys. B: At., Mol. Opt. Phys. 29(5), L163–L168 (1996).
[Crossref]

Azzeer, A. M.

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

B. Eppink, A. T. J.

A. T. J. B. Eppink and D. H. Parker, “Velocity map imaging of ions and electrons using electrostatic lenses: Application in photoelectron and photofragment ion imaging of molecular oxygen,” Rev. Sci. Instrum. 68(9), 3477–3484 (1997).
[Crossref]

Bækhøj, J. E.

Beck, A. R.

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

Bell, M. J.

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

Ben-Itzhak, I.

G. Laurent, W. Cao, H. Li, Z. Wang, I. Ben-Itzhak, and C. L. Cocke, “Attosecond control of orbital parity mix interferences and the relative phase of even and odd harmonics in an attosecond pulse train,” Phys. Rev. Lett. 109(8), 083001 (2012).
[Crossref]

Benke, K.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Bergmann, U.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Brabec, T.

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

Calegari, F.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

F. Calegari, C. Vozzi, M. Negro, G. Sansone, F. Frassetto, L. Poletto, P. Villoresi, M. Nisoli, S. D. Silvestri, and S. Stagira, “Efficient continuum generation exceeding 200 ev by intense ultrashort two-color driver,” Opt. Lett. 34(20), 3125–3127 (2009).
[Crossref]

Cao, W.

W. Cao, E. R. Warrick, A. Fidler, S. R. Leone, and D. M. Neumark, “Near-resonant four-wave mixing of attosecond extreme-ultraviolet pulses with near-infrared pulses in neon: Detection of electronic coherences,” Phys. Rev. A 94(2), 021802 (2016).
[Crossref]

G. Laurent, W. Cao, H. Li, Z. Wang, I. Ben-Itzhak, and C. L. Cocke, “Attosecond control of orbital parity mix interferences and the relative phase of even and odd harmonics in an attosecond pulse train,” Phys. Rev. Lett. 109(8), 083001 (2012).
[Crossref]

Carré, B.

M. B. Gaarde, P. Antoine, A. Persson, B. Carré, A. L’Huillier, and C.-G. Wahlström, “High-order tunable sum and difference frequency mixing in the xuv region,” J. Phys. B: At., Mol. Opt. Phys. 29(5), L163–L168 (1996).
[Crossref]

Chang, Z.

M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
[Crossref]

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

Chatterley, A. S.

A. S. Chatterley, F. Lackner, C. D. Pemmaraju, D. M. Neumark, S. R. Leone, and O. Gessner, “Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond xuv absorption spectroscopy,” J. Phys. Chem. A 120(48), 9509–9518 (2016).
[Crossref]

Chen, S.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

Cheng, Y.

M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
[Crossref]

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

Chini, M.

M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
[Crossref]

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

Cocke, C. L.

G. Laurent, W. Cao, H. Li, Z. Wang, I. Ben-Itzhak, and C. L. Cocke, “Attosecond control of orbital parity mix interferences and the relative phase of even and odd harmonics in an attosecond pulse train,” Phys. Rev. Lett. 109(8), 083001 (2012).
[Crossref]

E. Gagnon, P. Ranitovic, X.-M. Tong, C. L. Cocke, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Soft x-ray-driven femtosecond molecular dynamics,” Science 317(5843), 1374–1378 (2007).
[Crossref]

Corkum, P.

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

Crane, J. K.

M. D. Perry and J. K. Crane, “High-order harmonic emission from mixed fields,” Phys. Rev. A 48(6), R4051–R4054 (1993).
[Crossref]

Dinh, K. B.

K. A. Tran, K. B. Dinh, P. Hannaford, and L. Van Dao, “Phase-matched four-wave mixing in the extreme ultraviolet region,” J. Appl. Phys. 124(1), 015901 (2018).
[Crossref]

Dmitry, A

M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
[Crossref]

Doughty, B.

B. Doughty, C. J. Koh, L. H. Haber, and S. R. Leone, “Ultrafast decay of superexcited c $^{4}\Sigma _u^{-}$4Σu− nl$\sigma _g$σg$\nu$ν=0,1 states of $O_2$O2 probed with femtosecond photoelectron spectroscopy,” J. Chem. Phys. 136(21), 214303 (2012).
[Crossref]

Drescher, M.

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

Dubrouil, A.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

Eichmann, H.

H. Eichmann, S. Meyer, K. Riepl, C. Momma, and B. Wellegehausen, “Generation of short-pulse tunable xuv radiation by high-order frequency mixing,” Phys. Rev. A 50(4), R2834–R2836 (1994).
[Crossref]

Fidler, A.

W. Cao, E. R. Warrick, A. Fidler, S. R. Leone, and D. M. Neumark, “Near-resonant four-wave mixing of attosecond extreme-ultraviolet pulses with near-infrared pulses in neon: Detection of electronic coherences,” Phys. Rev. A 94(2), 021802 (2016).
[Crossref]

Fidler, A. P.

H. J. B. Marroux, A. P. Fidler, D. M. Neumark, and S. R. Leone, “Multidimensional spectroscopy with attosecond extreme ultraviolet and shaped near-infrared pulses,” Sci. Adv. 4(9), eaau3783 (2018).
[Crossref]

Frassetto, F.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

F. Calegari, C. Vozzi, M. Negro, G. Sansone, F. Frassetto, L. Poletto, P. Villoresi, M. Nisoli, S. D. Silvestri, and S. Stagira, “Efficient continuum generation exceeding 200 ev by intense ultrashort two-color driver,” Opt. Lett. 34(20), 3125–3127 (2009).
[Crossref]

Fritz, D.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Gaarde, M. B.

N. Harkema, J. E. Bækhøj, C.-T. Liao, M. B. Gaarde, K. J. Schafer, and A. Sandhu, “Controlling attosecond transient absorption with tunable, non-commensurate light fields,” Opt. Lett. 43(14), 3357–3360 (2018).
[Crossref]

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

M. B. Gaarde, P. Antoine, A. Persson, B. Carré, A. L’Huillier, and C.-G. Wahlström, “High-order tunable sum and difference frequency mixing in the xuv region,” J. Phys. B: At., Mol. Opt. Phys. 29(5), L163–L168 (1996).
[Crossref]

Gagnon, E.

E. Gagnon, P. Ranitovic, X.-M. Tong, C. L. Cocke, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Soft x-ray-driven femtosecond molecular dynamics,” Science 317(5843), 1374–1378 (2007).
[Crossref]

Gessner, O.

A. S. Chatterley, F. Lackner, C. D. Pemmaraju, D. M. Neumark, S. R. Leone, and O. Gessner, “Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond xuv absorption spectroscopy,” J. Phys. Chem. A 120(48), 9509–9518 (2016).
[Crossref]

Goulielmakis, E.

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

Haber, L. H.

B. Doughty, C. J. Koh, L. H. Haber, and S. R. Leone, “Ultrafast decay of superexcited c $^{4}\Sigma _u^{-}$4Σu− nl$\sigma _g$σg$\nu$ν=0,1 states of $O_2$O2 probed with femtosecond photoelectron spectroscopy,” J. Chem. Phys. 136(21), 214303 (2012).
[Crossref]

Hannaford, P.

K. A. Tran, K. B. Dinh, P. Hannaford, and L. Van Dao, “Phase-matched four-wave mixing in the extreme ultraviolet region,” J. Appl. Phys. 124(1), 015901 (2018).
[Crossref]

Harkema, N.

A. Plunkett, N. Harkema, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Ultrafast rydberg-state dissociation in oxygen: Identifying the role of multielectron excitations,” Phys. Rev. A 99(6), 063403 (2019).
[Crossref]

N. Harkema, J. E. Bækhøj, C.-T. Liao, M. B. Gaarde, K. J. Schafer, and A. Sandhu, “Controlling attosecond transient absorption with tunable, non-commensurate light fields,” Opt. Lett. 43(14), 3357–3360 (2018).
[Crossref]

Haxton, D. J.

C.-T. Liao, X. Li, D. J. Haxton, T. N. Rescigno, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Probing autoionizing states of molecular oxygen with xuv transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications,” Phys. Rev. A 95(4), 043427 (2017).
[Crossref]

He, F.

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

Heinzmann, U.

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

Hentschel, M.

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

Hummert, J.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

Kapteyn, H. C.

E. Gagnon, P. Ranitovic, X.-M. Tong, C. L. Cocke, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Soft x-ray-driven femtosecond molecular dynamics,” Science 317(5843), 1374–1378 (2007).
[Crossref]

Kienberger, R.

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

Kling, M. F.

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

Koh, C. J.

B. Doughty, C. J. Koh, L. H. Haber, and S. R. Leone, “Ultrafast decay of superexcited c $^{4}\Sigma _u^{-}$4Σu− nl$\sigma _g$σg$\nu$ν=0,1 states of $O_2$O2 probed with femtosecond photoelectron spectroscopy,” J. Chem. Phys. 136(21), 214303 (2012).
[Crossref]

Krausz, F.

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

L’Huillier, A.

M. B. Gaarde, P. Antoine, A. Persson, B. Carré, A. L’Huillier, and C.-G. Wahlström, “High-order tunable sum and difference frequency mixing in the xuv region,” J. Phys. B: At., Mol. Opt. Phys. 29(5), L163–L168 (1996).
[Crossref]

Lackner, F.

A. S. Chatterley, F. Lackner, C. D. Pemmaraju, D. M. Neumark, S. R. Leone, and O. Gessner, “Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond xuv absorption spectroscopy,” J. Phys. Chem. A 120(48), 9509–9518 (2016).
[Crossref]

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]

Laurent, G.

G. Laurent, W. Cao, H. Li, Z. Wang, I. Ben-Itzhak, and C. L. Cocke, “Attosecond control of orbital parity mix interferences and the relative phase of even and odd harmonics in an attosecond pulse train,” Phys. Rev. Lett. 109(8), 083001 (2012).
[Crossref]

Leone, S. R.

H. J. B. Marroux, A. P. Fidler, D. M. Neumark, and S. R. Leone, “Multidimensional spectroscopy with attosecond extreme ultraviolet and shaped near-infrared pulses,” Sci. Adv. 4(9), eaau3783 (2018).
[Crossref]

A. S. Chatterley, F. Lackner, C. D. Pemmaraju, D. M. Neumark, S. R. Leone, and O. Gessner, “Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond xuv absorption spectroscopy,” J. Phys. Chem. A 120(48), 9509–9518 (2016).
[Crossref]

W. Cao, E. R. Warrick, A. Fidler, S. R. Leone, and D. M. Neumark, “Near-resonant four-wave mixing of attosecond extreme-ultraviolet pulses with near-infrared pulses in neon: Detection of electronic coherences,” Phys. Rev. A 94(2), 021802 (2016).
[Crossref]

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

B. Doughty, C. J. Koh, L. H. Haber, and S. R. Leone, “Ultrafast decay of superexcited c $^{4}\Sigma _u^{-}$4Σu− nl$\sigma _g$σg$\nu$ν=0,1 states of $O_2$O2 probed with femtosecond photoelectron spectroscopy,” J. Chem. Phys. 136(21), 214303 (2012).
[Crossref]

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

Leveillee, J.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Li, H.

G. Laurent, W. Cao, H. Li, Z. Wang, I. Ben-Itzhak, and C. L. Cocke, “Attosecond control of orbital parity mix interferences and the relative phase of even and odd harmonics in an attosecond pulse train,” Phys. Rev. Lett. 109(8), 083001 (2012).
[Crossref]

Li, R.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Li, X.

C.-T. Liao, X. Li, D. J. Haxton, T. N. Rescigno, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Probing autoionizing states of molecular oxygen with xuv transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications,” Phys. Rev. A 95(4), 043427 (2017).
[Crossref]

Li, Z.

H. Timmers, Z. Li, N. Shivaram, R. Santra, O. Vendrell, and A. Sandhu, “Coherent electron hole dynamics near a conical intersection,” Phys. Rev. Lett. 113(11), 113003 (2014).
[Crossref]

Liao, C.-T.

N. Harkema, J. E. Bækhøj, C.-T. Liao, M. B. Gaarde, K. J. Schafer, and A. Sandhu, “Controlling attosecond transient absorption with tunable, non-commensurate light fields,” Opt. Lett. 43(14), 3357–3360 (2018).
[Crossref]

C.-T. Liao, X. Li, D. J. Haxton, T. N. Rescigno, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Probing autoionizing states of molecular oxygen with xuv transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications,” Phys. Rev. A 95(4), 043427 (2017).
[Crossref]

Lin, M.-F.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Loh, Z.-H.

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

Lucchese, R. R.

A. Plunkett, N. Harkema, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Ultrafast rydberg-state dissociation in oxygen: Identifying the role of multielectron excitations,” Phys. Rev. A 99(6), 063403 (2019).
[Crossref]

C.-T. Liao, X. Li, D. J. Haxton, T. N. Rescigno, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Probing autoionizing states of molecular oxygen with xuv transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications,” Phys. Rev. A 95(4), 043427 (2017).
[Crossref]

Marroux, H. J. B.

H. J. B. Marroux, A. P. Fidler, D. M. Neumark, and S. R. Leone, “Multidimensional spectroscopy with attosecond extreme ultraviolet and shaped near-infrared pulses,” Sci. Adv. 4(9), eaau3783 (2018).
[Crossref]

Mashiko, H.

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

McCurdy, C. W.

A. Plunkett, N. Harkema, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Ultrafast rydberg-state dissociation in oxygen: Identifying the role of multielectron excitations,” Phys. Rev. A 99(6), 063403 (2019).
[Crossref]

C.-T. Liao, X. Li, D. J. Haxton, T. N. Rescigno, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Probing autoionizing states of molecular oxygen with xuv transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications,” Phys. Rev. A 95(4), 043427 (2017).
[Crossref]

Meyer, S.

H. Eichmann, S. Meyer, K. Riepl, C. Momma, and B. Wellegehausen, “Generation of short-pulse tunable xuv radiation by high-order frequency mixing,” Phys. Rev. A 50(4), R2834–R2836 (1994).
[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]

Milosevic, N.

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

Momma, C.

H. Eichmann, S. Meyer, K. Riepl, C. Momma, and B. Wellegehausen, “Generation of short-pulse tunable xuv radiation by high-order frequency mixing,” Phys. Rev. A 50(4), R2834–R2836 (1994).
[Crossref]

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]

Murnane, M. M.

E. Gagnon, P. Ranitovic, X.-M. Tong, C. L. Cocke, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Soft x-ray-driven femtosecond molecular dynamics,” Science 317(5843), 1374–1378 (2007).
[Crossref]

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]

Negro, M.

Neumark, D. M.

H. J. B. Marroux, A. P. Fidler, D. M. Neumark, and S. R. Leone, “Multidimensional spectroscopy with attosecond extreme ultraviolet and shaped near-infrared pulses,” Sci. Adv. 4(9), eaau3783 (2018).
[Crossref]

A. S. Chatterley, F. Lackner, C. D. Pemmaraju, D. M. Neumark, S. R. Leone, and O. Gessner, “Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond xuv absorption spectroscopy,” J. Phys. Chem. A 120(48), 9509–9518 (2016).
[Crossref]

W. Cao, E. R. Warrick, A. Fidler, S. R. Leone, and D. M. Neumark, “Near-resonant four-wave mixing of attosecond extreme-ultraviolet pulses with near-infrared pulses in neon: Detection of electronic coherences,” Phys. Rev. A 94(2), 021802 (2016).
[Crossref]

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

Nisoli, M.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

F. Calegari, C. Vozzi, M. Negro, G. Sansone, F. Frassetto, L. Poletto, P. Villoresi, M. Nisoli, S. D. Silvestri, and S. Stagira, “Efficient continuum generation exceeding 200 ev by intense ultrashort two-color driver,” Opt. Lett. 34(20), 3125–3127 (2009).
[Crossref]

Parker, D. H.

A. T. J. B. Eppink and D. H. Parker, “Velocity map imaging of ions and electrons using electrostatic lenses: Application in photoelectron and photofragment ion imaging of molecular oxygen,” Rev. Sci. Instrum. 68(9), 3477–3484 (1997).
[Crossref]

Pemmaraju, C. D.

A. S. Chatterley, F. Lackner, C. D. Pemmaraju, D. M. Neumark, S. R. Leone, and O. Gessner, “Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond xuv absorption spectroscopy,” J. Phys. Chem. A 120(48), 9509–9518 (2016).
[Crossref]

Perry, M. D.

M. D. Perry and J. K. Crane, “High-order harmonic emission from mixed fields,” Phys. Rev. A 48(6), R4051–R4054 (1993).
[Crossref]

Persson, A.

M. B. Gaarde, P. Antoine, A. Persson, B. Carré, A. L’Huillier, and C.-G. Wahlström, “High-order tunable sum and difference frequency mixing in the xuv region,” J. Phys. B: At., Mol. Opt. Phys. 29(5), L163–L168 (1996).
[Crossref]

Pfeifer, T.

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

Pfeiffer, A. N.

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

Plunkett, A.

A. Plunkett, N. Harkema, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Ultrafast rydberg-state dissociation in oxygen: Identifying the role of multielectron excitations,” Phys. Rev. A 99(6), 063403 (2019).
[Crossref]

Poletto, L.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

F. Calegari, C. Vozzi, M. Negro, G. Sansone, F. Frassetto, L. Poletto, P. Villoresi, M. Nisoli, S. D. Silvestri, and S. Stagira, “Efficient continuum generation exceeding 200 ev by intense ultrashort two-color driver,” Opt. Lett. 34(20), 3125–3127 (2009).
[Crossref]

Ranitovic, P.

E. Gagnon, P. Ranitovic, X.-M. Tong, C. L. Cocke, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Soft x-ray-driven femtosecond molecular dynamics,” Science 317(5843), 1374–1378 (2007).
[Crossref]

Reduzzi, M.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

Reider, G. A.

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

Rescigno, T. N.

C.-T. Liao, X. Li, D. J. Haxton, T. N. Rescigno, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Probing autoionizing states of molecular oxygen with xuv transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications,” Phys. Rev. A 95(4), 043427 (2017).
[Crossref]

Riepl, K.

H. Eichmann, S. Meyer, K. Riepl, C. Momma, and B. Wellegehausen, “Generation of short-pulse tunable xuv radiation by high-order frequency mixing,” Phys. Rev. A 50(4), R2834–R2836 (1994).
[Crossref]

Rohringer, N.

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

Ryland, E. S.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Sandhu, A.

A. Plunkett, N. Harkema, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Ultrafast rydberg-state dissociation in oxygen: Identifying the role of multielectron excitations,” Phys. Rev. A 99(6), 063403 (2019).
[Crossref]

N. Harkema, J. E. Bækhøj, C.-T. Liao, M. B. Gaarde, K. J. Schafer, and A. Sandhu, “Controlling attosecond transient absorption with tunable, non-commensurate light fields,” Opt. Lett. 43(14), 3357–3360 (2018).
[Crossref]

C.-T. Liao, X. Li, D. J. Haxton, T. N. Rescigno, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Probing autoionizing states of molecular oxygen with xuv transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications,” Phys. Rev. A 95(4), 043427 (2017).
[Crossref]

H. Timmers, Z. Li, N. Shivaram, R. Santra, O. Vendrell, and A. Sandhu, “Coherent electron hole dynamics near a conical intersection,” Phys. Rev. Lett. 113(11), 113003 (2014).
[Crossref]

H. Timmers, N. Shivaram, and A. Sandhu, “Ultrafast dynamics of neutral superexcited oxygen: A direct measurement of the competition between autoionization and predissociation,” Phys. Rev. Lett. 109(17), 173001 (2012).
[Crossref]

Sandhu, A. S.

E. Gagnon, P. Ranitovic, X.-M. Tong, C. L. Cocke, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Soft x-ray-driven femtosecond molecular dynamics,” Science 317(5843), 1374–1378 (2007).
[Crossref]

Sansone, G.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

F. Calegari, C. Vozzi, M. Negro, G. Sansone, F. Frassetto, L. Poletto, P. Villoresi, M. Nisoli, S. D. Silvestri, and S. Stagira, “Efficient continuum generation exceeding 200 ev by intense ultrashort two-color driver,” Opt. Lett. 34(20), 3125–3127 (2009).
[Crossref]

Santra, R.

H. Timmers, Z. Li, N. Shivaram, R. Santra, O. Vendrell, and A. Sandhu, “Coherent electron hole dynamics near a conical intersection,” Phys. Rev. Lett. 113(11), 113003 (2014).
[Crossref]

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

Schafer, K.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

Schafer, K. J.

N. Harkema, J. E. Bækhøj, C.-T. Liao, M. B. Gaarde, K. J. Schafer, and A. Sandhu, “Controlling attosecond transient absorption with tunable, non-commensurate light fields,” Opt. Lett. 43(14), 3357–3360 (2018).
[Crossref]

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

Schleife, A.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Shen, X.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Shivaram, N.

H. Timmers, Z. Li, N. Shivaram, R. Santra, O. Vendrell, and A. Sandhu, “Coherent electron hole dynamics near a conical intersection,” Phys. Rev. Lett. 113(11), 113003 (2014).
[Crossref]

H. Timmers, N. Shivaram, and A. Sandhu, “Ultrafast dynamics of neutral superexcited oxygen: A direct measurement of the competition between autoionization and predissociation,” Phys. Rev. Lett. 109(17), 173001 (2012).
[Crossref]

Silvestri, S. D.

Spielmann, C.

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

Stagira, S.

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]

Tanaka, Y.

K. Yoshino and Y. Tanaka, “Rydberg absorption series and ionization energies of the oxygen molecule,” J. Chem. Phys. 48(11), 4859–4867 (1968).
[Crossref]

Telnov, S.-I.

M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
[Crossref]

Thumm, U.

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

Timmers, H.

H. Timmers, Z. Li, N. Shivaram, R. Santra, O. Vendrell, and A. Sandhu, “Coherent electron hole dynamics near a conical intersection,” Phys. Rev. Lett. 113(11), 113003 (2014).
[Crossref]

H. Timmers, N. Shivaram, and A. Sandhu, “Ultrafast dynamics of neutral superexcited oxygen: A direct measurement of the competition between autoionization and predissociation,” Phys. Rev. Lett. 109(17), 173001 (2012).
[Crossref]

Tong, X.-M.

E. Gagnon, P. Ranitovic, X.-M. Tong, C. L. Cocke, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Soft x-ray-driven femtosecond molecular dynamics,” Science 317(5843), 1374–1378 (2007).
[Crossref]

Tran, K. A.

K. A. Tran, K. B. Dinh, P. Hannaford, and L. Van Dao, “Phase-matched four-wave mixing in the extreme ultraviolet region,” J. Appl. Phys. 124(1), 015901 (2018).
[Crossref]

Van Dao, L.

K. A. Tran, K. B. Dinh, P. Hannaford, and L. Van Dao, “Phase-matched four-wave mixing in the extreme ultraviolet region,” J. Appl. Phys. 124(1), 015901 (2018).
[Crossref]

Vendrell, O.

H. Timmers, Z. Li, N. Shivaram, R. Santra, O. Vendrell, and A. Sandhu, “Coherent electron hole dynamics near a conical intersection,” Phys. Rev. Lett. 113(11), 113003 (2014).
[Crossref]

Verkamp, M. A.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Villoresi, P.

Vozzi, C.

Vura-Weis, J.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Wahlström, C.-G.

M. B. Gaarde, P. Antoine, A. Persson, B. Carré, A. L’Huillier, and C.-G. Wahlström, “High-order tunable sum and difference frequency mixing in the xuv region,” J. Phys. B: At., Mol. Opt. Phys. 29(5), L163–L168 (1996).
[Crossref]

Wang, H.

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

Wang, X.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
[Crossref]

Wang, Z.

G. Laurent, W. Cao, H. Li, Z. Wang, I. Ben-Itzhak, and C. L. Cocke, “Attosecond control of orbital parity mix interferences and the relative phase of even and odd harmonics in an attosecond pulse train,” Phys. Rev. Lett. 109(8), 083001 (2012).
[Crossref]

Warrick, E. R.

W. Cao, E. R. Warrick, A. Fidler, S. R. Leone, and D. M. Neumark, “Near-resonant four-wave mixing of attosecond extreme-ultraviolet pulses with near-infrared pulses in neon: Detection of electronic coherences,” Phys. Rev. A 94(2), 021802 (2016).
[Crossref]

Wellegehausen, B.

H. Eichmann, S. Meyer, K. Riepl, C. Momma, and B. Wellegehausen, “Generation of short-pulse tunable xuv radiation by high-order frequency mixing,” Phys. Rev. A 50(4), R2834–R2836 (1994).
[Crossref]

Weninger, C.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Wirth, A.

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

Wu, M.

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

Wu, Y.

M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
[Crossref]

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

Yakovlev, V. S.

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

Yoshino, K.

K. Yoshino and Y. Tanaka, “Rydberg absorption series and ionization energies of the oxygen molecule,” J. Chem. Phys. 48(11), 4859–4867 (1968).
[Crossref]

Zhang, C.-H.

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

Zhang, K.

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Zhao, D.

M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
[Crossref]

Zherebtsov, S.

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

J. Appl. Phys. (1)

K. A. Tran, K. B. Dinh, P. Hannaford, and L. Van Dao, “Phase-matched four-wave mixing in the extreme ultraviolet region,” J. Appl. Phys. 124(1), 015901 (2018).
[Crossref]

J. Chem. Phys. (2)

B. Doughty, C. J. Koh, L. H. Haber, and S. R. Leone, “Ultrafast decay of superexcited c $^{4}\Sigma _u^{-}$4Σu− nl$\sigma _g$σg$\nu$ν=0,1 states of $O_2$O2 probed with femtosecond photoelectron spectroscopy,” J. Chem. Phys. 136(21), 214303 (2012).
[Crossref]

K. Yoshino and Y. Tanaka, “Rydberg absorption series and ionization energies of the oxygen molecule,” J. Chem. Phys. 48(11), 4859–4867 (1968).
[Crossref]

J. Phys. B: At., Mol. Opt. Phys. (1)

M. B. Gaarde, P. Antoine, A. Persson, B. Carré, A. L’Huillier, and C.-G. Wahlström, “High-order tunable sum and difference frequency mixing in the xuv region,” J. Phys. B: At., Mol. Opt. Phys. 29(5), L163–L168 (1996).
[Crossref]

J. Phys. Chem. A (1)

A. S. Chatterley, F. Lackner, C. D. Pemmaraju, D. M. Neumark, S. R. Leone, and O. Gessner, “Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond xuv absorption spectroscopy,” J. Phys. Chem. A 120(48), 9509–9518 (2016).
[Crossref]

J. Phys. Chem. C (1)

M.-F. Lin, M. A. Verkamp, J. Leveillee, E. S. Ryland, K. Benke, K. Zhang, C. Weninger, X. Shen, R. Li, D. Fritz, U. Bergmann, X. Wang, A. Schleife, and J. Vura-Weis, “Carrier-specific femtosecond xuv transient absorption of PbI$_2$2 reveals ultrafast nonradiative recombination,” J. Phys. Chem. C 121(50), 27886–27893 (2017).
[Crossref]

Nature (2)

M. Hentschel, R. Kienberger, C. Spielmann, G. A. Reider, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, “Attosecond metrology,” Nature 414(6863), 509–513 (2001).
[Crossref]

E. Goulielmakis, Z.-H. Loh, A. Wirth, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. F. Kling, S. R. Leone, and F. Krausz, “Real-time observation of valence electron motion,” Nature 466(7307), 739–743 (2010).
[Crossref]

Opt. Lett. (2)

Phys. Rev. A (7)

A. Plunkett, N. Harkema, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Ultrafast rydberg-state dissociation in oxygen: Identifying the role of multielectron excitations,” Phys. Rev. A 99(6), 063403 (2019).
[Crossref]

M. Reduzzi, J. Hummert, A. Dubrouil, F. Calegari, M. Nisoli, F. Frassetto, L. Poletto, S. Chen, M. Wu, M. B. Gaarde, K. Schafer, and G. Sansone, “Polarization control of absorption of virtual dressed states in helium,” Phys. Rev. A 92(3), 033408 (2015).
[Crossref]

C.-T. Liao, X. Li, D. J. Haxton, T. N. Rescigno, R. R. Lucchese, C. W. McCurdy, and A. Sandhu, “Probing autoionizing states of molecular oxygen with xuv transient absorption: Electronic-symmetry-dependent line shapes and laser-induced modifications,” Phys. Rev. A 95(4), 043427 (2017).
[Crossref]

W. Cao, E. R. Warrick, A. Fidler, S. R. Leone, and D. M. Neumark, “Near-resonant four-wave mixing of attosecond extreme-ultraviolet pulses with near-infrared pulses in neon: Detection of electronic coherences,” Phys. Rev. A 94(2), 021802 (2016).
[Crossref]

H. Eichmann, S. Meyer, K. Riepl, C. Momma, and B. Wellegehausen, “Generation of short-pulse tunable xuv radiation by high-order frequency mixing,” Phys. Rev. A 50(4), R2834–R2836 (1994).
[Crossref]

M. D. Perry and J. K. Crane, “High-order harmonic emission from mixed fields,” Phys. Rev. A 48(6), R4051–R4054 (1993).
[Crossref]

S. Chen, M. J. Bell, A. R. Beck, H. Mashiko, M. Wu, A. N. Pfeiffer, M. B. Gaarde, D. M. Neumark, S. R. Leone, and K. J. Schafer, “Light-induced states in attosecond transient absorption spectra of laser-dressed helium,” Phys. Rev. A 86(6), 063408 (2012).
[Crossref]

Phys. Rev. Lett. (5)

G. Laurent, W. Cao, H. Li, Z. Wang, I. Ben-Itzhak, and C. L. Cocke, “Attosecond control of orbital parity mix interferences and the relative phase of even and odd harmonics in an attosecond pulse train,” Phys. Rev. Lett. 109(8), 083001 (2012).
[Crossref]

H. Wang, M. Chini, S. Chen, C.-H. Zhang, F. He, Y. Cheng, Y. Wu, U. Thumm, and Z. Chang, “Attosecond time-resolved autoionization of argon,” Phys. Rev. Lett. 105(14), 143002 (2010).
[Crossref]

H. Timmers, N. Shivaram, and A. Sandhu, “Ultrafast dynamics of neutral superexcited oxygen: A direct measurement of the competition between autoionization and predissociation,” Phys. Rev. Lett. 109(17), 173001 (2012).
[Crossref]

H. Timmers, Z. Li, N. Shivaram, R. Santra, O. Vendrell, and A. Sandhu, “Coherent electron hole dynamics near a conical intersection,” Phys. Rev. Lett. 113(11), 113003 (2014).
[Crossref]

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]

Rev. Sci. Instrum. (1)

A. T. J. B. Eppink and D. H. Parker, “Velocity map imaging of ions and electrons using electrostatic lenses: Application in photoelectron and photofragment ion imaging of molecular oxygen,” Rev. Sci. Instrum. 68(9), 3477–3484 (1997).
[Crossref]

Sci. Adv. (1)

H. J. B. Marroux, A. P. Fidler, D. M. Neumark, and S. R. Leone, “Multidimensional spectroscopy with attosecond extreme ultraviolet and shaped near-infrared pulses,” Sci. Adv. 4(9), eaau3783 (2018).
[Crossref]

Sci. Rep. (1)

M. Chini, X. Wang, Y. Cheng, Y. Wu, D. Zhao, S.-I. Telnov, A Dmitry, and Z. Chang, “Sub-cycle Oscillations in Virtual States Brought to Light,” Sci. Rep. 3(1), 1105 (2013).
[Crossref]

Science (1)

E. Gagnon, P. Ranitovic, X.-M. Tong, C. L. Cocke, M. M. Murnane, H. C. Kapteyn, and A. S. Sandhu, “Soft x-ray-driven femtosecond molecular dynamics,” Science 317(5843), 1374–1378 (2007).
[Crossref]

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (5)

Fig. 1.
Fig. 1. (a) Experimental setup for two-color harmonic generation and application. BS: beamsplitter; DM: dichroic mirror; SIGC: semi-infinite gas cell for HHG; TM: toroidal mirror; HM: holed mirror; DS: delay stage; S: shutter; VMI: velocity-map imaging spectrometer; GC: gas cell; G: grating. The blue, red, and green colors represent the XUV pulse, 780 nm NIR pulse, and tunable SWIR pulse, respectively. (b) Typical SC harmonic spectrum created with the NIR pulse only. (c) TC harmonic spectrum created with a strong NIR pulse and weak tunable SWIR pulse.
Fig. 2.
Fig. 2. (a) Intensity dependence of the harmonic spectra created with one- and two-color fields. The spectra were generated using I$_1$ = 200 TW/cm$^{2}$ and I$_2$ = 0.4, and 1.2 TW/cm$^{2}$ for the blue, red, and green curves, respectively. The XUV flux for the three spectra are plotted on the same scale. The harmonic orders for the SC and TC harmonics are labeled. (b) TC harmonic spectra created using different wavelengths of the tunable pulse. All of the spectra were generated using I$_1$ = 190 TW/cm$^{2}$ and I$_2$ = 7 TW/cm$^{2}$. The dashed lines indicate the positions of different harmonic orders as a function of wavelength.
Fig. 3.
Fig. 3. (a) Energy level diagram for the XUV + NIR Rydberg ionization process in Helium. The XUV harmonics populate the Helium Rydberg levels and the NIR pulse ionizes the excited electrons. (b) Rydberg photoelectron spectrum generated from SC harmonics (blue curve) and TC harmonics (red curve). The SC harmonics primarily populate the 4p state in Helium while the TC harmonics can be used to reduce the 4p population while creating a strong 3p excitation, which is not possible with our SC harmonics.
Fig. 4.
Fig. 4. XTAS spectra in Helium measured using (a) SC harmonics and (b) TC harmonics. The left side of each plot shows the change in optical density, while the right side shows the XUV spectrum used in each scan, plotted on a log scale. Relevant real and virtual states are labeled on the side of each spectrogram.
Fig. 5.
Fig. 5. (a) XTAS spectrograms in Oxygen using SC harmonics (left plot) and TC harmonics (right plot). The TC spectrum accesses nl$\sigma _g$ Rydberg states of the c$^{4}\Sigma _u^{-}$ ionic state, which we have labeled. We also indicate an unknown feature near 20.6 eV and features near 20 eV corresponding to B$^{2}\Sigma _g^{-}$ Rydberg states. The right side of each plot shows the XUV spectrum plotted on a log scale. (b) XTAS spectrograms in Oxygen covering the spectrum of the TC $12\omega _1 + \omega _2$ harmonic emission with the tunable pulse set to 1.2 $\mu$m (left), 1.4 $\mu$m (center), and 1.6 $\mu$m (right). The spectrum overlaps with np$\sigma _u$ Rydberg states of the B$^{2}\Sigma _g^{-}$ ionic state. The right side of each plot shows the XUV spectrum plotted on a linear scale.

Metrics