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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 24 — Nov. 22, 2010
  • pp: 24619–24631

Frequency modulation of high-order harmonic fields with synthesis of two-color laser fields

A. Amani Eilanlou, Yasuo Nabekawa, Kenichi L. Ishikawa, Hiroyuki Takahashi, Eiji J. Takahashi, and Katsumi Midorikawa  »View Author Affiliations


Optics Express, Vol. 18, Issue 24, pp. 24619-24631 (2010)
http://dx.doi.org/10.1364/OE.18.024619


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Abstract

We report periodical frequency modulation of high-order harmonic fields observed by changing the delay between the driving two-color laser fields consisting of the fundamental and its second harmonic (SH) field. The amplitude of modulation has been up to ∼0.4 eV, which is larger than the bandwidth of the fundamental field. Experimental results show that the intensity and chirp of the fundamental field can control this phenomenon. Numerical analysis by solving the time-dependent Schrödinger equation approves of these results and shows that anharmonic frequency components of the SH field have a crucial role in this phenomenon.

© 2010 Optical Society of America

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Ultrafast Optics

History
Original Manuscript: September 3, 2010
Revised Manuscript: October 15, 2010
Manuscript Accepted: October 18, 2010
Published: November 10, 2010

Citation
A. Amani Eilanlou, Yasuo Nabekawa, Kenichi L. Ishikawa, Hiroyuki Takahashi, Eiji J. Takahashi, and Katsumi Midorikawa, "Frequency modulation of high-order harmonic fields with synthesis of two-color laser fields," Opt. Express 18, 24619-24631 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-24-24619


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References

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