K. J. Yuan and A. D. Bandrauk, “Circularly polarized attosecond pulses from molecular high-order harmonic generation by ultrashort intense bichromatic circularly and linearly polarized laser pulses,” J. Phys. B: At. Mol. Opt. Phys. 45, 074001 (2012).

[CrossRef]

V. V. Strelkov, A. A. Gonoskov, I. A. Gonoskov, and M. Yu. Ryabikin, “Origin for ellipticity of high-order harmonics generated in atomic gases and the sublaser-cycle evolution of harmonic polarization,” Phys. Rev. Lett. 107, 043902 (2011).

[CrossRef]
[PubMed]

P. A. J. Sherratt, S. Ramakrishna, and T. Seideman, “Signatures of the molecular potential in the ellipticity of high-order harmonics from aligned molecules,” Phys. Rev. A 83, 053425 (2011).

[CrossRef]

M. Y. Qin, X. S. Zhu, Q. B. Zhang, W. Y. Hong, and P. X. Lu, “Broadband large-ellipticity harmonic generation with polar molecules,” Opt. Express 19, 25084–25092 (2011).

[CrossRef]

S. Haessler, J. Caillat, and P. Salières, “Self-probing of molecules with high harmonic generation,” J. Phys. B: At. Mol. Opt. Phys. 44, 203001 (2011).

[CrossRef]

Y. Chen and B. Zhang, “Tracing the structure of asymmetric molecules from high-order harmonic generation,” Phys. Rev. A 84, 053402 (2011).

[CrossRef]

E. Hijano, C. Serrat, G. N. Gibson, and J. Biegert, “Orbital geometry determined by orthogonal high-order harmonic polarization components,” Phys. Rev. A 81, 041401(R) (2010).

[CrossRef]

V. Strelkov, “Role of autoionizing state in resonant high-order harmonic generation and attosecond pulse production,” Phys. Rev. Lett. 104, 123901 (2010).

[CrossRef]
[PubMed]

A. Etches and L. B. Madsen, “Extending the strong-field approximation of high-order harmonic generation to polar molecules: gating mechanisms and extension of the harmonic cutoff,” J. Phys. B: At. Mol. Opt. Phys. 43, 155602 (2010).

[CrossRef]

S. K. Son, D. A. Telnov, and S. I. Chu, “Probing the origin of elliptical high-order harmonic generation from aligned molecules in linearly polarized laser fields,” Phys. Rev. A 82, 043829 (2010).

[CrossRef]

E. V. van der Zwan and M. Lein, “Two-center interference and ellipticity in high-order harmonic generation from H2+,” Phys. Rev. A 82, 033405 (2010).

[CrossRef]

A. Etches, C. B. Madsen, and L. B. Madsen, “Inducing elliptically polarized high-order harmonics from aligned molecules with linearly polarized femtosecond pulses,” Phys. Rev. A 81, 013409 (2010).

[CrossRef]

S. Ramakrishna, P. A. J. Sherratt, A. D. Dutoi, and T. Seideman, “Origin and implication of ellipticity in high-order harmonic generation from aligned molecules,” Phys. Rev. A 81, 021802(R) (2010).

[CrossRef]

X. Zhou, R. Lock, N. Wagner, W. Li, H. C. Kapteyn, and M. M. Murnane, “Elliptically polarized high-order harmonic emission from molecules in linearly polarized laser fields,” Phys. Rev. Lett. 102, 073902 (2009).

[CrossRef]
[PubMed]

O. Smirnova, S. Patchkovskii, Y. Mairesse, N. Dudovich, and D. Villeneuve, “Attosecond circular dichroism spectroscopy of polyatomic molecules,” Phys. Rev. Lett. 102, 063601 (2009).

[CrossRef]
[PubMed]

D. I. Bondar, W. K. Liu, and M. Yu. Ivanov, “Two-electron ionization in strong laser fields below intensity threshold: Signatures of attosecond timing in correlated spectra,” Phys. Rev. A 79, 023417 (2009).

[CrossRef]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. B. Zhang, and X. B. Wang, “Few-cycle attosecond pulses with stabilized-carrier-envelope phase in the presence of a strong terahertz field,” Opt. Express 17, 5139–5146 (2009).

[CrossRef]
[PubMed]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. G. Li, Q. B. Zhang, Z. Y. Yang, and X. B. Wang, “Method to generate directly a broadband isolated attosecond pulse with stable pulse duration and high signal-to-noise ratio,” Phys. Rev. A 78, 063407 (2008).

[CrossRef]

O. Smirnova, M. Spanner, and M. Ivanov, “Analytical solutions for strong field-driven atomic and molecular one-and two-electron continua and applications to strong-field problems,” Phys. Rev. A 77, 033407 (2008).

[CrossRef]

M. Gühr, B. K. McFarland, J. P. Farrell, and P. H. Bucksbaum, “High harmonic generation for N2 and CO2 beyond the two-point model,” J. Phys. B: At. Mol. Opt. Phys. 40, 3745–3755 (2007).

[CrossRef]

J. Levesque, Y. Mairesse, N. Dudovich, H. Pépin, J. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Polarization state of high-order harmonic emission from aligned molecules,” Phys. Rev. Lett. 99, 243001 (2007).

[CrossRef]

P. F. Lan, P. X. Lu, W. Cao, Y. H. Li, and X. L. Wang, “Isolated sub-100-as pulse generation via controlling electron dynamics,” Phys. Rev. A 76, 011402(R) (2007).

[CrossRef]

M. Lein, “Molecular imaging using recolliding electrons,” J. Phys. B: At. Mol. Opt. Phys. 40, R135–R173 (2007).

[CrossRef]

V. V. Strelkov, “Theory of high-order harmonic generation and attosecond pulse emission by a low-frequency elliptically polarized laser field,” Phys. Rev. A 74, 013405 (2006).

[CrossRef]

O. Smirnova, M. Spanner, and M. Ivanov, “Coulomb and polarization effects in sub-cycle dynamics of strong-field ionization,” J. Phys. B: At. Mol. Opt. Phys. 39, S307–S321 (2006).

[CrossRef]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature 432, 867–871 (2004).

[CrossRef]
[PubMed]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

W. Becker, F. Grasbon, R. Kopold, D. B. Milošević, G. G. Paulus, and H. Walther, “Above-threshold ionization: From classical features to quantum effects,” Adv. At. Mol. Opt. Phys. 48, 35–98 (2002).

[CrossRef]

Ph. Antoine, B. Carré, A. L’Huillier, and M. Lewenstein, “Polarization of high-order harmonics,” Phys. Rev. A 55, 1314–1324 (1997).

[CrossRef]

Ph. Antoine, A. L’Huillier, M. Lewenstein, P. Salières, and B. Carré, “Theory of high-order harmonic generation by an elliptically polarized laser field,” Phys. Rev. A 53, 1725–1745 (1996).

[CrossRef]
[PubMed]

F. A. Weihe, S. K. Dutta, G. Korn, D. Du, P. H. Bucksbaum, and P. L. Shkolnikov, “Polarization of high-intensity high-harmonic generation,” Phys. Rev. A 51, R3433–R3436 (1995).

[CrossRef]
[PubMed]

M. Lewenstein, Ph. Balcou, M. Yu. Ivanov, A. L’Huillier, and P. B. Corkum, “Theory of high-harmonic generation by low-frequency laser fields,” Phys. Rev. A 49, 2117–2132 (1994).

[CrossRef]
[PubMed]

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

[CrossRef]
[PubMed]

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

[CrossRef]
[PubMed]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

Ph. Antoine, B. Carré, A. L’Huillier, and M. Lewenstein, “Polarization of high-order harmonics,” Phys. Rev. A 55, 1314–1324 (1997).

[CrossRef]

Ph. Antoine, A. L’Huillier, M. Lewenstein, P. Salières, and B. Carré, “Theory of high-order harmonic generation by an elliptically polarized laser field,” Phys. Rev. A 53, 1725–1745 (1996).

[CrossRef]
[PubMed]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

M. Lewenstein, Ph. Balcou, M. Yu. Ivanov, A. L’Huillier, and P. B. Corkum, “Theory of high-harmonic generation by low-frequency laser fields,” Phys. Rev. A 49, 2117–2132 (1994).

[CrossRef]
[PubMed]

K. J. Yuan and A. D. Bandrauk, “Circularly polarized attosecond pulses from molecular high-order harmonic generation by ultrashort intense bichromatic circularly and linearly polarized laser pulses,” J. Phys. B: At. Mol. Opt. Phys. 45, 074001 (2012).

[CrossRef]

W. Becker, F. Grasbon, R. Kopold, D. B. Milošević, G. G. Paulus, and H. Walther, “Above-threshold ionization: From classical features to quantum effects,” Adv. At. Mol. Opt. Phys. 48, 35–98 (2002).

[CrossRef]

E. Hijano, C. Serrat, G. N. Gibson, and J. Biegert, “Orbital geometry determined by orthogonal high-order harmonic polarization components,” Phys. Rev. A 81, 041401(R) (2010).

[CrossRef]

D. I. Bondar, W. K. Liu, and M. Yu. Ivanov, “Two-electron ionization in strong laser fields below intensity threshold: Signatures of attosecond timing in correlated spectra,” Phys. Rev. A 79, 023417 (2009).

[CrossRef]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

M. Gühr, B. K. McFarland, J. P. Farrell, and P. H. Bucksbaum, “High harmonic generation for N2 and CO2 beyond the two-point model,” J. Phys. B: At. Mol. Opt. Phys. 40, 3745–3755 (2007).

[CrossRef]

F. A. Weihe, S. K. Dutta, G. Korn, D. Du, P. H. Bucksbaum, and P. L. Shkolnikov, “Polarization of high-intensity high-harmonic generation,” Phys. Rev. A 51, R3433–R3436 (1995).

[CrossRef]
[PubMed]

S. Haessler, J. Caillat, and P. Salières, “Self-probing of molecules with high harmonic generation,” J. Phys. B: At. Mol. Opt. Phys. 44, 203001 (2011).

[CrossRef]

P. F. Lan, P. X. Lu, W. Cao, Y. H. Li, and X. L. Wang, “Isolated sub-100-as pulse generation via controlling electron dynamics,” Phys. Rev. A 76, 011402(R) (2007).

[CrossRef]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

Ph. Antoine, B. Carré, A. L’Huillier, and M. Lewenstein, “Polarization of high-order harmonics,” Phys. Rev. A 55, 1314–1324 (1997).

[CrossRef]

Ph. Antoine, A. L’Huillier, M. Lewenstein, P. Salières, and B. Carré, “Theory of high-order harmonic generation by an elliptically polarized laser field,” Phys. Rev. A 53, 1725–1745 (1996).

[CrossRef]
[PubMed]

Y. Chen and B. Zhang, “Tracing the structure of asymmetric molecules from high-order harmonic generation,” Phys. Rev. A 84, 053402 (2011).

[CrossRef]

C. C. Chirilă, “Analysis of the strong field approximation for harmonic generation and multiphoton ionization in intense ultrashort laser pulses,” PhD Thesis http://massey.dur.ac.uk/resources/cpchirila/chirilathesis.pdf .

S. K. Son, D. A. Telnov, and S. I. Chu, “Probing the origin of elliptical high-order harmonic generation from aligned molecules in linearly polarized laser fields,” Phys. Rev. A 82, 043829 (2010).

[CrossRef]

J. Levesque, Y. Mairesse, N. Dudovich, H. Pépin, J. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Polarization state of high-order harmonic emission from aligned molecules,” Phys. Rev. Lett. 99, 243001 (2007).

[CrossRef]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature 432, 867–871 (2004).

[CrossRef]
[PubMed]

M. Lewenstein, Ph. Balcou, M. Yu. Ivanov, A. L’Huillier, and P. B. Corkum, “Theory of high-harmonic generation by low-frequency laser fields,” Phys. Rev. A 49, 2117–2132 (1994).

[CrossRef]
[PubMed]

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

[CrossRef]
[PubMed]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

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

[CrossRef]
[PubMed]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

F. A. Weihe, S. K. Dutta, G. Korn, D. Du, P. H. Bucksbaum, and P. L. Shkolnikov, “Polarization of high-intensity high-harmonic generation,” Phys. Rev. A 51, R3433–R3436 (1995).

[CrossRef]
[PubMed]

O. Smirnova, S. Patchkovskii, Y. Mairesse, N. Dudovich, and D. Villeneuve, “Attosecond circular dichroism spectroscopy of polyatomic molecules,” Phys. Rev. Lett. 102, 063601 (2009).

[CrossRef]
[PubMed]

J. Levesque, Y. Mairesse, N. Dudovich, H. Pépin, J. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Polarization state of high-order harmonic emission from aligned molecules,” Phys. Rev. Lett. 99, 243001 (2007).

[CrossRef]

S. Ramakrishna, P. A. J. Sherratt, A. D. Dutoi, and T. Seideman, “Origin and implication of ellipticity in high-order harmonic generation from aligned molecules,” Phys. Rev. A 81, 021802(R) (2010).

[CrossRef]

F. A. Weihe, S. K. Dutta, G. Korn, D. Du, P. H. Bucksbaum, and P. L. Shkolnikov, “Polarization of high-intensity high-harmonic generation,” Phys. Rev. A 51, R3433–R3436 (1995).

[CrossRef]
[PubMed]

A. Etches and L. B. Madsen, “Extending the strong-field approximation of high-order harmonic generation to polar molecules: gating mechanisms and extension of the harmonic cutoff,” J. Phys. B: At. Mol. Opt. Phys. 43, 155602 (2010).

[CrossRef]

A. Etches, C. B. Madsen, and L. B. Madsen, “Inducing elliptically polarized high-order harmonics from aligned molecules with linearly polarized femtosecond pulses,” Phys. Rev. A 81, 013409 (2010).

[CrossRef]

M. Gühr, B. K. McFarland, J. P. Farrell, and P. H. Bucksbaum, “High harmonic generation for N2 and CO2 beyond the two-point model,” J. Phys. B: At. Mol. Opt. Phys. 40, 3745–3755 (2007).

[CrossRef]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

E. Hijano, C. Serrat, G. N. Gibson, and J. Biegert, “Orbital geometry determined by orthogonal high-order harmonic polarization components,” Phys. Rev. A 81, 041401(R) (2010).

[CrossRef]

V. V. Strelkov, A. A. Gonoskov, I. A. Gonoskov, and M. Yu. Ryabikin, “Origin for ellipticity of high-order harmonics generated in atomic gases and the sublaser-cycle evolution of harmonic polarization,” Phys. Rev. Lett. 107, 043902 (2011).

[CrossRef]
[PubMed]

V. V. Strelkov, A. A. Gonoskov, I. A. Gonoskov, and M. Yu. Ryabikin, “Origin for ellipticity of high-order harmonics generated in atomic gases and the sublaser-cycle evolution of harmonic polarization,” Phys. Rev. Lett. 107, 043902 (2011).

[CrossRef]
[PubMed]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

W. Becker, F. Grasbon, R. Kopold, D. B. Milošević, G. G. Paulus, and H. Walther, “Above-threshold ionization: From classical features to quantum effects,” Adv. At. Mol. Opt. Phys. 48, 35–98 (2002).

[CrossRef]

M. Gühr, B. K. McFarland, J. P. Farrell, and P. H. Bucksbaum, “High harmonic generation for N2 and CO2 beyond the two-point model,” J. Phys. B: At. Mol. Opt. Phys. 40, 3745–3755 (2007).

[CrossRef]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

S. Haessler, J. Caillat, and P. Salières, “Self-probing of molecules with high harmonic generation,” J. Phys. B: At. Mol. Opt. Phys. 44, 203001 (2011).

[CrossRef]

E. Hijano, C. Serrat, G. N. Gibson, and J. Biegert, “Orbital geometry determined by orthogonal high-order harmonic polarization components,” Phys. Rev. A 81, 041401(R) (2010).

[CrossRef]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

M. Y. Qin, X. S. Zhu, Q. B. Zhang, W. Y. Hong, and P. X. Lu, “Broadband large-ellipticity harmonic generation with polar molecules,” Opt. Express 19, 25084–25092 (2011).

[CrossRef]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. B. Zhang, and X. B. Wang, “Few-cycle attosecond pulses with stabilized-carrier-envelope phase in the presence of a strong terahertz field,” Opt. Express 17, 5139–5146 (2009).

[CrossRef]
[PubMed]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. G. Li, Q. B. Zhang, Z. Y. Yang, and X. B. Wang, “Method to generate directly a broadband isolated attosecond pulse with stable pulse duration and high signal-to-noise ratio,” Phys. Rev. A 78, 063407 (2008).

[CrossRef]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature 432, 867–871 (2004).

[CrossRef]
[PubMed]

O. Smirnova, M. Spanner, and M. Ivanov, “Analytical solutions for strong field-driven atomic and molecular one-and two-electron continua and applications to strong-field problems,” Phys. Rev. A 77, 033407 (2008).

[CrossRef]

O. Smirnova, M. Spanner, and M. Ivanov, “Coulomb and polarization effects in sub-cycle dynamics of strong-field ionization,” J. Phys. B: At. Mol. Opt. Phys. 39, S307–S321 (2006).

[CrossRef]

D. I. Bondar, W. K. Liu, and M. Yu. Ivanov, “Two-electron ionization in strong laser fields below intensity threshold: Signatures of attosecond timing in correlated spectra,” Phys. Rev. A 79, 023417 (2009).

[CrossRef]

M. Lewenstein, Ph. Balcou, M. Yu. Ivanov, A. L’Huillier, and P. B. Corkum, “Theory of high-harmonic generation by low-frequency laser fields,” Phys. Rev. A 49, 2117–2132 (1994).

[CrossRef]
[PubMed]

X. Zhou, R. Lock, N. Wagner, W. Li, H. C. Kapteyn, and M. M. Murnane, “Elliptically polarized high-order harmonic emission from molecules in linearly polarized laser fields,” Phys. Rev. Lett. 102, 073902 (2009).

[CrossRef]
[PubMed]

J. Levesque, Y. Mairesse, N. Dudovich, H. Pépin, J. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Polarization state of high-order harmonic emission from aligned molecules,” Phys. Rev. Lett. 99, 243001 (2007).

[CrossRef]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature 432, 867–871 (2004).

[CrossRef]
[PubMed]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

W. Becker, F. Grasbon, R. Kopold, D. B. Milošević, G. G. Paulus, and H. Walther, “Above-threshold ionization: From classical features to quantum effects,” Adv. At. Mol. Opt. Phys. 48, 35–98 (2002).

[CrossRef]

F. A. Weihe, S. K. Dutta, G. Korn, D. Du, P. H. Bucksbaum, and P. L. Shkolnikov, “Polarization of high-intensity high-harmonic generation,” Phys. Rev. A 51, R3433–R3436 (1995).

[CrossRef]
[PubMed]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

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

[CrossRef]
[PubMed]

Ph. Antoine, B. Carré, A. L’Huillier, and M. Lewenstein, “Polarization of high-order harmonics,” Phys. Rev. A 55, 1314–1324 (1997).

[CrossRef]

Ph. Antoine, A. L’Huillier, M. Lewenstein, P. Salières, and B. Carré, “Theory of high-order harmonic generation by an elliptically polarized laser field,” Phys. Rev. A 53, 1725–1745 (1996).

[CrossRef]
[PubMed]

M. Lewenstein, Ph. Balcou, M. Yu. Ivanov, A. L’Huillier, and P. B. Corkum, “Theory of high-harmonic generation by low-frequency laser fields,” Phys. Rev. A 49, 2117–2132 (1994).

[CrossRef]
[PubMed]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. B. Zhang, and X. B. Wang, “Few-cycle attosecond pulses with stabilized-carrier-envelope phase in the presence of a strong terahertz field,” Opt. Express 17, 5139–5146 (2009).

[CrossRef]
[PubMed]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. G. Li, Q. B. Zhang, Z. Y. Yang, and X. B. Wang, “Method to generate directly a broadband isolated attosecond pulse with stable pulse duration and high signal-to-noise ratio,” Phys. Rev. A 78, 063407 (2008).

[CrossRef]

P. F. Lan, P. X. Lu, W. Cao, Y. H. Li, and X. L. Wang, “Isolated sub-100-as pulse generation via controlling electron dynamics,” Phys. Rev. A 76, 011402(R) (2007).

[CrossRef]

E. V. van der Zwan and M. Lein, “Two-center interference and ellipticity in high-order harmonic generation from H2+,” Phys. Rev. A 82, 033405 (2010).

[CrossRef]

M. Lein, “Molecular imaging using recolliding electrons,” J. Phys. B: At. Mol. Opt. Phys. 40, R135–R173 (2007).

[CrossRef]

J. Levesque, Y. Mairesse, N. Dudovich, H. Pépin, J. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Polarization state of high-order harmonic emission from aligned molecules,” Phys. Rev. Lett. 99, 243001 (2007).

[CrossRef]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature 432, 867–871 (2004).

[CrossRef]
[PubMed]

Ph. Antoine, B. Carré, A. L’Huillier, and M. Lewenstein, “Polarization of high-order harmonics,” Phys. Rev. A 55, 1314–1324 (1997).

[CrossRef]

Ph. Antoine, A. L’Huillier, M. Lewenstein, P. Salières, and B. Carré, “Theory of high-order harmonic generation by an elliptically polarized laser field,” Phys. Rev. A 53, 1725–1745 (1996).

[CrossRef]
[PubMed]

M. Lewenstein, Ph. Balcou, M. Yu. Ivanov, A. L’Huillier, and P. B. Corkum, “Theory of high-harmonic generation by low-frequency laser fields,” Phys. Rev. A 49, 2117–2132 (1994).

[CrossRef]
[PubMed]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. G. Li, Q. B. Zhang, Z. Y. Yang, and X. B. Wang, “Method to generate directly a broadband isolated attosecond pulse with stable pulse duration and high signal-to-noise ratio,” Phys. Rev. A 78, 063407 (2008).

[CrossRef]

X. Zhou, R. Lock, N. Wagner, W. Li, H. C. Kapteyn, and M. M. Murnane, “Elliptically polarized high-order harmonic emission from molecules in linearly polarized laser fields,” Phys. Rev. Lett. 102, 073902 (2009).

[CrossRef]
[PubMed]

P. F. Lan, P. X. Lu, W. Cao, Y. H. Li, and X. L. Wang, “Isolated sub-100-as pulse generation via controlling electron dynamics,” Phys. Rev. A 76, 011402(R) (2007).

[CrossRef]

D. I. Bondar, W. K. Liu, and M. Yu. Ivanov, “Two-electron ionization in strong laser fields below intensity threshold: Signatures of attosecond timing in correlated spectra,” Phys. Rev. A 79, 023417 (2009).

[CrossRef]

X. Zhou, R. Lock, N. Wagner, W. Li, H. C. Kapteyn, and M. M. Murnane, “Elliptically polarized high-order harmonic emission from molecules in linearly polarized laser fields,” Phys. Rev. Lett. 102, 073902 (2009).

[CrossRef]
[PubMed]

M. Y. Qin, X. S. Zhu, Q. B. Zhang, W. Y. Hong, and P. X. Lu, “Broadband large-ellipticity harmonic generation with polar molecules,” Opt. Express 19, 25084–25092 (2011).

[CrossRef]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. B. Zhang, and X. B. Wang, “Few-cycle attosecond pulses with stabilized-carrier-envelope phase in the presence of a strong terahertz field,” Opt. Express 17, 5139–5146 (2009).

[CrossRef]
[PubMed]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. G. Li, Q. B. Zhang, Z. Y. Yang, and X. B. Wang, “Method to generate directly a broadband isolated attosecond pulse with stable pulse duration and high signal-to-noise ratio,” Phys. Rev. A 78, 063407 (2008).

[CrossRef]

P. F. Lan, P. X. Lu, W. Cao, Y. H. Li, and X. L. Wang, “Isolated sub-100-as pulse generation via controlling electron dynamics,” Phys. Rev. A 76, 011402(R) (2007).

[CrossRef]

A. Etches, C. B. Madsen, and L. B. Madsen, “Inducing elliptically polarized high-order harmonics from aligned molecules with linearly polarized femtosecond pulses,” Phys. Rev. A 81, 013409 (2010).

[CrossRef]

A. Etches, C. B. Madsen, and L. B. Madsen, “Inducing elliptically polarized high-order harmonics from aligned molecules with linearly polarized femtosecond pulses,” Phys. Rev. A 81, 013409 (2010).

[CrossRef]

A. Etches and L. B. Madsen, “Extending the strong-field approximation of high-order harmonic generation to polar molecules: gating mechanisms and extension of the harmonic cutoff,” J. Phys. B: At. Mol. Opt. Phys. 43, 155602 (2010).

[CrossRef]

O. Smirnova, S. Patchkovskii, Y. Mairesse, N. Dudovich, and D. Villeneuve, “Attosecond circular dichroism spectroscopy of polyatomic molecules,” Phys. Rev. Lett. 102, 063601 (2009).

[CrossRef]
[PubMed]

J. Levesque, Y. Mairesse, N. Dudovich, H. Pépin, J. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Polarization state of high-order harmonic emission from aligned molecules,” Phys. Rev. Lett. 99, 243001 (2007).

[CrossRef]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

M. Gühr, B. K. McFarland, J. P. Farrell, and P. H. Bucksbaum, “High harmonic generation for N2 and CO2 beyond the two-point model,” J. Phys. B: At. Mol. Opt. Phys. 40, 3745–3755 (2007).

[CrossRef]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

W. Becker, F. Grasbon, R. Kopold, D. B. Milošević, G. G. Paulus, and H. Walther, “Above-threshold ionization: From classical features to quantum effects,” Adv. At. Mol. Opt. Phys. 48, 35–98 (2002).

[CrossRef]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

X. Zhou, R. Lock, N. Wagner, W. Li, H. C. Kapteyn, and M. M. Murnane, “Elliptically polarized high-order harmonic emission from molecules in linearly polarized laser fields,” Phys. Rev. Lett. 102, 073902 (2009).

[CrossRef]
[PubMed]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature 432, 867–871 (2004).

[CrossRef]
[PubMed]

O. Smirnova, S. Patchkovskii, Y. Mairesse, N. Dudovich, and D. Villeneuve, “Attosecond circular dichroism spectroscopy of polyatomic molecules,” Phys. Rev. Lett. 102, 063601 (2009).

[CrossRef]
[PubMed]

W. Becker, F. Grasbon, R. Kopold, D. B. Milošević, G. G. Paulus, and H. Walther, “Above-threshold ionization: From classical features to quantum effects,” Adv. At. Mol. Opt. Phys. 48, 35–98 (2002).

[CrossRef]

J. Levesque, Y. Mairesse, N. Dudovich, H. Pépin, J. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Polarization state of high-order harmonic emission from aligned molecules,” Phys. Rev. Lett. 99, 243001 (2007).

[CrossRef]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature 432, 867–871 (2004).

[CrossRef]
[PubMed]

P. A. J. Sherratt, S. Ramakrishna, and T. Seideman, “Signatures of the molecular potential in the ellipticity of high-order harmonics from aligned molecules,” Phys. Rev. A 83, 053425 (2011).

[CrossRef]

S. Ramakrishna, P. A. J. Sherratt, A. D. Dutoi, and T. Seideman, “Origin and implication of ellipticity in high-order harmonic generation from aligned molecules,” Phys. Rev. A 81, 021802(R) (2010).

[CrossRef]

V. V. Strelkov, A. A. Gonoskov, I. A. Gonoskov, and M. Yu. Ryabikin, “Origin for ellipticity of high-order harmonics generated in atomic gases and the sublaser-cycle evolution of harmonic polarization,” Phys. Rev. Lett. 107, 043902 (2011).

[CrossRef]
[PubMed]

S. Haessler, J. Caillat, and P. Salières, “Self-probing of molecules with high harmonic generation,” J. Phys. B: At. Mol. Opt. Phys. 44, 203001 (2011).

[CrossRef]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

Ph. Antoine, A. L’Huillier, M. Lewenstein, P. Salières, and B. Carré, “Theory of high-order harmonic generation by an elliptically polarized laser field,” Phys. Rev. A 53, 1725–1745 (1996).

[CrossRef]
[PubMed]

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

[CrossRef]
[PubMed]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

P. A. J. Sherratt, S. Ramakrishna, and T. Seideman, “Signatures of the molecular potential in the ellipticity of high-order harmonics from aligned molecules,” Phys. Rev. A 83, 053425 (2011).

[CrossRef]

S. Ramakrishna, P. A. J. Sherratt, A. D. Dutoi, and T. Seideman, “Origin and implication of ellipticity in high-order harmonic generation from aligned molecules,” Phys. Rev. A 81, 021802(R) (2010).

[CrossRef]

E. Hijano, C. Serrat, G. N. Gibson, and J. Biegert, “Orbital geometry determined by orthogonal high-order harmonic polarization components,” Phys. Rev. A 81, 041401(R) (2010).

[CrossRef]

P. A. J. Sherratt, S. Ramakrishna, and T. Seideman, “Signatures of the molecular potential in the ellipticity of high-order harmonics from aligned molecules,” Phys. Rev. A 83, 053425 (2011).

[CrossRef]

S. Ramakrishna, P. A. J. Sherratt, A. D. Dutoi, and T. Seideman, “Origin and implication of ellipticity in high-order harmonic generation from aligned molecules,” Phys. Rev. A 81, 021802(R) (2010).

[CrossRef]

F. A. Weihe, S. K. Dutta, G. Korn, D. Du, P. H. Bucksbaum, and P. L. Shkolnikov, “Polarization of high-intensity high-harmonic generation,” Phys. Rev. A 51, R3433–R3436 (1995).

[CrossRef]
[PubMed]

O. Smirnova, S. Patchkovskii, Y. Mairesse, N. Dudovich, and D. Villeneuve, “Attosecond circular dichroism spectroscopy of polyatomic molecules,” Phys. Rev. Lett. 102, 063601 (2009).

[CrossRef]
[PubMed]

O. Smirnova, M. Spanner, and M. Ivanov, “Analytical solutions for strong field-driven atomic and molecular one-and two-electron continua and applications to strong-field problems,” Phys. Rev. A 77, 033407 (2008).

[CrossRef]

O. Smirnova, M. Spanner, and M. Ivanov, “Coulomb and polarization effects in sub-cycle dynamics of strong-field ionization,” J. Phys. B: At. Mol. Opt. Phys. 39, S307–S321 (2006).

[CrossRef]

S. K. Son, D. A. Telnov, and S. I. Chu, “Probing the origin of elliptical high-order harmonic generation from aligned molecules in linearly polarized laser fields,” Phys. Rev. A 82, 043829 (2010).

[CrossRef]

O. Smirnova, M. Spanner, and M. Ivanov, “Analytical solutions for strong field-driven atomic and molecular one-and two-electron continua and applications to strong-field problems,” Phys. Rev. A 77, 033407 (2008).

[CrossRef]

O. Smirnova, M. Spanner, and M. Ivanov, “Coulomb and polarization effects in sub-cycle dynamics of strong-field ionization,” J. Phys. B: At. Mol. Opt. Phys. 39, S307–S321 (2006).

[CrossRef]

V. Strelkov, “Role of autoionizing state in resonant high-order harmonic generation and attosecond pulse production,” Phys. Rev. Lett. 104, 123901 (2010).

[CrossRef]
[PubMed]

V. V. Strelkov, A. A. Gonoskov, I. A. Gonoskov, and M. Yu. Ryabikin, “Origin for ellipticity of high-order harmonics generated in atomic gases and the sublaser-cycle evolution of harmonic polarization,” Phys. Rev. Lett. 107, 043902 (2011).

[CrossRef]
[PubMed]

V. V. Strelkov, “Theory of high-order harmonic generation and attosecond pulse emission by a low-frequency elliptically polarized laser field,” Phys. Rev. A 74, 013405 (2006).

[CrossRef]

Y. Mairesse, A. de Bohan, L. J. Frasinski, H. Merdji, L. C. Dinu, P. Monchicourt, P. Breger, M. Kovačev, R. Taïeb, B. Carré, H. G. Muller, P. Agostini, and P. Salières, “Attosecond synchronization of high-harmonic soft X-rays,” Science 302, 1540–1543 (2003).

[CrossRef]
[PubMed]

S. K. Son, D. A. Telnov, and S. I. Chu, “Probing the origin of elliptical high-order harmonic generation from aligned molecules in linearly polarized laser fields,” Phys. Rev. A 82, 043829 (2010).

[CrossRef]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

E. V. van der Zwan and M. Lein, “Two-center interference and ellipticity in high-order harmonic generation from H2+,” Phys. Rev. A 82, 033405 (2010).

[CrossRef]

O. Smirnova, S. Patchkovskii, Y. Mairesse, N. Dudovich, and D. Villeneuve, “Attosecond circular dichroism spectroscopy of polyatomic molecules,” Phys. Rev. Lett. 102, 063601 (2009).

[CrossRef]
[PubMed]

J. Levesque, Y. Mairesse, N. Dudovich, H. Pépin, J. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Polarization state of high-order harmonic emission from aligned molecules,” Phys. Rev. Lett. 99, 243001 (2007).

[CrossRef]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature 432, 867–871 (2004).

[CrossRef]
[PubMed]

X. Zhou, R. Lock, N. Wagner, W. Li, H. C. Kapteyn, and M. M. Murnane, “Elliptically polarized high-order harmonic emission from molecules in linearly polarized laser fields,” Phys. Rev. Lett. 102, 073902 (2009).

[CrossRef]
[PubMed]

W. Becker, F. Grasbon, R. Kopold, D. B. Milošević, G. G. Paulus, and H. Walther, “Above-threshold ionization: From classical features to quantum effects,” Adv. At. Mol. Opt. Phys. 48, 35–98 (2002).

[CrossRef]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. B. Zhang, and X. B. Wang, “Few-cycle attosecond pulses with stabilized-carrier-envelope phase in the presence of a strong terahertz field,” Opt. Express 17, 5139–5146 (2009).

[CrossRef]
[PubMed]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. G. Li, Q. B. Zhang, Z. Y. Yang, and X. B. Wang, “Method to generate directly a broadband isolated attosecond pulse with stable pulse duration and high signal-to-noise ratio,” Phys. Rev. A 78, 063407 (2008).

[CrossRef]

P. F. Lan, P. X. Lu, W. Cao, Y. H. Li, and X. L. Wang, “Isolated sub-100-as pulse generation via controlling electron dynamics,” Phys. Rev. A 76, 011402(R) (2007).

[CrossRef]

F. A. Weihe, S. K. Dutta, G. Korn, D. Du, P. H. Bucksbaum, and P. L. Shkolnikov, “Polarization of high-intensity high-harmonic generation,” Phys. Rev. A 51, R3433–R3436 (1995).

[CrossRef]
[PubMed]

E. Goulielmakis, M. Schultze, M. Hofstetter, V. S. Yakovlev, J. Gagnon, M. Uiberacker, A. L. Aquila, E. M. Gullikson, D. T. Attwood, R. Kienberger, F. Krausz, and U. Kleineberg, “Single-cycle nonlinear optics,” Science 320, 1614–1617 (2008).

[CrossRef]
[PubMed]

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

[CrossRef]
[PubMed]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. G. Li, Q. B. Zhang, Z. Y. Yang, and X. B. Wang, “Method to generate directly a broadband isolated attosecond pulse with stable pulse duration and high signal-to-noise ratio,” Phys. Rev. A 78, 063407 (2008).

[CrossRef]

K. J. Yuan and A. D. Bandrauk, “Circularly polarized attosecond pulses from molecular high-order harmonic generation by ultrashort intense bichromatic circularly and linearly polarized laser pulses,” J. Phys. B: At. Mol. Opt. Phys. 45, 074001 (2012).

[CrossRef]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature 432, 867–871 (2004).

[CrossRef]
[PubMed]

Y. Chen and B. Zhang, “Tracing the structure of asymmetric molecules from high-order harmonic generation,” Phys. Rev. A 84, 053402 (2011).

[CrossRef]

M. Y. Qin, X. S. Zhu, Q. B. Zhang, W. Y. Hong, and P. X. Lu, “Broadband large-ellipticity harmonic generation with polar molecules,” Opt. Express 19, 25084–25092 (2011).

[CrossRef]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. B. Zhang, and X. B. Wang, “Few-cycle attosecond pulses with stabilized-carrier-envelope phase in the presence of a strong terahertz field,” Opt. Express 17, 5139–5146 (2009).

[CrossRef]
[PubMed]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. G. Li, Q. B. Zhang, Z. Y. Yang, and X. B. Wang, “Method to generate directly a broadband isolated attosecond pulse with stable pulse duration and high signal-to-noise ratio,” Phys. Rev. A 78, 063407 (2008).

[CrossRef]

X. Zhou, R. Lock, N. Wagner, W. Li, H. C. Kapteyn, and M. M. Murnane, “Elliptically polarized high-order harmonic emission from molecules in linearly polarized laser fields,” Phys. Rev. Lett. 102, 073902 (2009).

[CrossRef]
[PubMed]

W. Becker, F. Grasbon, R. Kopold, D. B. Milošević, G. G. Paulus, and H. Walther, “Above-threshold ionization: From classical features to quantum effects,” Adv. At. Mol. Opt. Phys. 48, 35–98 (2002).

[CrossRef]

M. Gühr, B. K. McFarland, J. P. Farrell, and P. H. Bucksbaum, “High harmonic generation for N2 and CO2 beyond the two-point model,” J. Phys. B: At. Mol. Opt. Phys. 40, 3745–3755 (2007).

[CrossRef]

O. Smirnova, M. Spanner, and M. Ivanov, “Coulomb and polarization effects in sub-cycle dynamics of strong-field ionization,” J. Phys. B: At. Mol. Opt. Phys. 39, S307–S321 (2006).

[CrossRef]

K. J. Yuan and A. D. Bandrauk, “Circularly polarized attosecond pulses from molecular high-order harmonic generation by ultrashort intense bichromatic circularly and linearly polarized laser pulses,” J. Phys. B: At. Mol. Opt. Phys. 45, 074001 (2012).

[CrossRef]

A. Etches and L. B. Madsen, “Extending the strong-field approximation of high-order harmonic generation to polar molecules: gating mechanisms and extension of the harmonic cutoff,” J. Phys. B: At. Mol. Opt. Phys. 43, 155602 (2010).

[CrossRef]

M. Lein, “Molecular imaging using recolliding electrons,” J. Phys. B: At. Mol. Opt. Phys. 40, R135–R173 (2007).

[CrossRef]

S. Haessler, J. Caillat, and P. Salières, “Self-probing of molecules with high harmonic generation,” J. Phys. B: At. Mol. Opt. Phys. 44, 203001 (2011).

[CrossRef]

J. Itatani, J. Levesque, D. Zeidler, H. Niikura, H. Pépin, J. C. Kieffer, P. B. Corkum, and D. M. Villeneuve, “Tomographic imaging of molecular orbitals,” Nature 432, 867–871 (2004).

[CrossRef]
[PubMed]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. B. Zhang, and X. B. Wang, “Few-cycle attosecond pulses with stabilized-carrier-envelope phase in the presence of a strong terahertz field,” Opt. Express 17, 5139–5146 (2009).

[CrossRef]
[PubMed]

M. Y. Qin, X. S. Zhu, Q. B. Zhang, W. Y. Hong, and P. X. Lu, “Broadband large-ellipticity harmonic generation with polar molecules,” Opt. Express 19, 25084–25092 (2011).

[CrossRef]

S. K. Son, D. A. Telnov, and S. I. Chu, “Probing the origin of elliptical high-order harmonic generation from aligned molecules in linearly polarized laser fields,” Phys. Rev. A 82, 043829 (2010).

[CrossRef]

A. Etches, C. B. Madsen, and L. B. Madsen, “Inducing elliptically polarized high-order harmonics from aligned molecules with linearly polarized femtosecond pulses,” Phys. Rev. A 81, 013409 (2010).

[CrossRef]

S. Ramakrishna, P. A. J. Sherratt, A. D. Dutoi, and T. Seideman, “Origin and implication of ellipticity in high-order harmonic generation from aligned molecules,” Phys. Rev. A 81, 021802(R) (2010).

[CrossRef]

P. A. J. Sherratt, S. Ramakrishna, and T. Seideman, “Signatures of the molecular potential in the ellipticity of high-order harmonics from aligned molecules,” Phys. Rev. A 83, 053425 (2011).

[CrossRef]

E. V. van der Zwan and M. Lein, “Two-center interference and ellipticity in high-order harmonic generation from H2+,” Phys. Rev. A 82, 033405 (2010).

[CrossRef]

O. Smirnova, M. Spanner, and M. Ivanov, “Analytical solutions for strong field-driven atomic and molecular one-and two-electron continua and applications to strong-field problems,” Phys. Rev. A 77, 033407 (2008).

[CrossRef]

D. I. Bondar, W. K. Liu, and M. Yu. Ivanov, “Two-electron ionization in strong laser fields below intensity threshold: Signatures of attosecond timing in correlated spectra,” Phys. Rev. A 79, 023417 (2009).

[CrossRef]

M. Lewenstein, Ph. Balcou, M. Yu. Ivanov, A. L’Huillier, and P. B. Corkum, “Theory of high-harmonic generation by low-frequency laser fields,” Phys. Rev. A 49, 2117–2132 (1994).

[CrossRef]
[PubMed]

E. Hijano, C. Serrat, G. N. Gibson, and J. Biegert, “Orbital geometry determined by orthogonal high-order harmonic polarization components,” Phys. Rev. A 81, 041401(R) (2010).

[CrossRef]

Y. Chen and B. Zhang, “Tracing the structure of asymmetric molecules from high-order harmonic generation,” Phys. Rev. A 84, 053402 (2011).

[CrossRef]

P. F. Lan, P. X. Lu, W. Cao, Y. H. Li, and X. L. Wang, “Isolated sub-100-as pulse generation via controlling electron dynamics,” Phys. Rev. A 76, 011402(R) (2007).

[CrossRef]

W. Y. Hong, P. X. Lu, P. F. Lan, Q. G. Li, Q. B. Zhang, Z. Y. Yang, and X. B. Wang, “Method to generate directly a broadband isolated attosecond pulse with stable pulse duration and high signal-to-noise ratio,” Phys. Rev. A 78, 063407 (2008).

[CrossRef]

Ph. Antoine, B. Carré, A. L’Huillier, and M. Lewenstein, “Polarization of high-order harmonics,” Phys. Rev. A 55, 1314–1324 (1997).

[CrossRef]

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[CrossRef]
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