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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 11 — Nov. 1, 2007
  • pp: 2847–2852

Extension of cutoff in high harmonic by using doubly charged ions in a laser-ablation plume

Masayuki Suzuki, Rashid A. Ganeev, Luc Bertrand Elouga Bom, Motoyoshi Baba, Tsuneyuki Ozaki, and Hiroto Kuroda  »View Author Affiliations


JOSA B, Vol. 24, Issue 11, pp. 2847-2852 (2007)
http://dx.doi.org/10.1364/JOSAB.24.002847


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Abstract

We report high-order harmonic generation from doubly charged ions in laser-ablation plasma produced by different prepulse intensities. At the prepulse intensity of 3.5 × 10 10 W cm 2 , harmonics up to the 63rd order ( 12.62 nm wavelength, 98.3 eV photon energy) were obtained by using a laser-ablation titanium plume. From analysis of the harmonics and visible radiation from the laser-ablation titanium plume at different prepulse intensities, we conclude that the highest harmonics near the cutoff region originated from doubly charged titanium ions. These studies show the effectiveness of using doubly charged ions to extend the cutoff energy of high-order harmonics.

© 2007 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4160) Nonlinear optics : Multiharmonic generation

ToC Category:
Nonlinear Optics

History
Original Manuscript: March 16, 2007
Revised Manuscript: July 3, 2007
Manuscript Accepted: August 29, 2007
Published: October 25, 2007

Citation
Masayuki Suzuki, Rashid A. Ganeev, Luc Bertrand Elouga Bom, Motoyoshi Baba, Tsuneyuki Ozaki, and Hiroto Kuroda, "Extension of cutoff in high harmonic by using doubly charged ions in a laser-ablation plume," J. Opt. Soc. Am. B 24, 2847-2852 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-11-2847

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