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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 25 — Dec. 8, 2008
  • pp: 20876–20883

Quantum path selection in high-harmonic generation by a phase-locked two-color field

N. Ishii, A. Kosuge, T. Hayashi, T. Kanai, J. Itatani, S. Adachi, and S. Watanabe  »View Author Affiliations

Optics Express, Vol. 16, Issue 25, pp. 20876-20883 (2008)

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We report the results of our studies on the selection of the quantum path in high-harmonic generation (HHG) with a relative-phase-locked two-color laser field. It is shown that by tuning the relative phase between fundamental and second-harmonic fields, The timing of tunnel ionization and subsequent electron trajectories on the sub-cycle time scale can be controlled. We have clearly observed a phase-dependent two-step feature in the harmonic spectra that can be attributed to the selection of two major trajectories in the two-color field HHG.

© 2008 Optical Society of America

OCIS Codes
(320.7120) Ultrafast optics : Ultrafast phenomena
(340.7480) X-ray optics : X-rays, soft x-rays, extreme ultraviolet (EUV)

ToC Category:
X-ray Optics

Original Manuscript: October 30, 2008
Revised Manuscript: November 26, 2008
Manuscript Accepted: November 27, 2008
Published: December 2, 2008

N. Ishii, A. Kosuge, T. Hayashi, T. Kanai, J. Itatani, S. Adachi, and S. Watanabe, "Quantum path selection in high-harmonic generation by a phase-locked two-color field," Opt. Express 16, 20876-20883 (2008)

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