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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 20 — Oct. 7, 2013
  • pp: 24309–24317

Above-threshold ionization by few-cycle phase jump pulses

Pidong Hu, Yueping Niu, Yang Xiang, and Shangqing Gong  »View Author Affiliations

Optics Express, Vol. 21, Issue 20, pp. 24309-24317 (2013)

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We theoretically investigate the above-threshold ionization of hydrogen atoms driven by few-cycle phase jump laser pulses. By numerically solving the three-dimensional time-dependent Schrödinger equation, we demonstrate that the phase jump plays an important role in the ionization process. The cutoff of the photoelectron energy spectrum can extend to a range of very high energy, and the yield of the photoelectrons can be dramatically enhanced by choosing proper phase jump times. Both the classical simulations and Fourier transform method are used to understand the spectra features found in our investigation.

© 2013 OSA

OCIS Codes
(190.4180) Nonlinear optics : Multiphoton processes
(270.6620) Quantum optics : Strong-field processes
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Ultrafast Optics

Original Manuscript: August 7, 2013
Revised Manuscript: September 18, 2013
Manuscript Accepted: September 18, 2013
Published: October 3, 2013

Pidong Hu, Yueping Niu, Yang Xiang, and Shangqing Gong, "Above-threshold ionization by few-cycle phase jump pulses," Opt. Express 21, 24309-24317 (2013)

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