2008
DOI: 10.1038/nphys914
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Scaling strong-field interactions towards the classical limit

Abstract: In 1964 Keldysh1 helped lay the foundations of strong-field physics by introducing a theoretical framework that characterized atomic ionization as a process that evolves with the intensity and wavelength of the fundamental field. Within this context, experiments 2 have examined the intensity-dependent ionization but, except for a few cases, technological limitations have confined the majority to wavelengths below 1 µm. The development of intense, ultrafast laser sources in the midinfrared (1 µm < l < 5 µm) reg… Show more

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Cited by 382 publications
(300 citation statements)
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“…The Cooper minimum (CM) in the HHG spectra of Ar has been studied intensively by using the traditional 800-nm lasers [127][128][129], or longer-wavelength lasers [130,131]. This minimum always occurs in the single-atom HHG spectrum of Ar based on the QRS theory, however, it is not necessary to appear in the macroscopic spectrum.…”
Section: Disappearance Of Cooper Minimum In the Hhg Spectra Of Armentioning
confidence: 99%
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“…The Cooper minimum (CM) in the HHG spectra of Ar has been studied intensively by using the traditional 800-nm lasers [127][128][129], or longer-wavelength lasers [130,131]. This minimum always occurs in the single-atom HHG spectrum of Ar based on the QRS theory, however, it is not necessary to appear in the macroscopic spectrum.…”
Section: Disappearance Of Cooper Minimum In the Hhg Spectra Of Armentioning
confidence: 99%
“…Macroscopic propagation effect has to be included in order to compare with experimental HHG spectra. A few investigations on the wavelength scaling of HHG experimentally [32,130,136] have been reported. However, theoretical analysis is still rather scarce.…”
Section: Wavelength Scaling Of Harmonic Efficiencymentioning
confidence: 99%
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“…In this area, many interesting phenomena have been revealed, including the bond softening and hardening [5,6], the electron localization in dissociation channels [7,8], the above threshold Coulomb explosion (CE) [9,10], the high-order harmonic generation (HHG) [11,12], the abovethreshold ionization (ATI) and dissociation (ATD) [13,14] etc. Usually, the ionization probabilities (IPs) and/or the dissociation probabilities (DPs) are critical to gain high signals or high yields for these photochemical and photophysical processes.…”
Section: Introductionmentioning
confidence: 99%