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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 5 — May. 1, 2006
  • pp: 925–931

Numerical simulation of the effect of hydrogen on recombination gain in the transition to ground state of Li III

Yoav Avitzour and Szymon Suckewer  »View Author Affiliations

JOSA B, Vol. 23, Issue 5, pp. 925-931 (2006)

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Numerical simulations of recombination gain in the Li III transition to ground state ( 2 1 at 13.5 nm ) are presented. The plasma simulated is a mixture of Li and H ions, and the space–time-dependent gain coefficient is calculated for different mixing ratios and different pumping beam parameters. The numerical model includes the initial optical field ionization of the plasma by an intense 100 fs laser pulse, taking into account residual heating, particle collisions, and spatial effects. Gain is then calculated during the process of recombination as the plasma expands and cools. We show that the addition of hydrogen to the plasma can lead to higher gain with a less restrictive range of experimental parameters. We analyze the effects of the addition of hydrogen on the gain and point to the optimal plasma and pump parameters to produce gain.

© 2006 Optical Society of America

OCIS Codes
(020.2070) Atomic and molecular physics : Effects of collisions
(140.3210) Lasers and laser optics : Ion lasers
(140.7090) Lasers and laser optics : Ultrafast lasers
(140.7240) Lasers and laser optics : UV, EUV, and X-ray lasers
(260.3230) Physical optics : Ionization
(350.5400) Other areas of optics : Plasmas

ToC Category:

Original Manuscript: September 2, 2005
Revised Manuscript: November 15, 2005
Manuscript Accepted: December 8, 2005

Yoav Avitzour and Szymon Suckewer, "Numerical simulation of the effect of hydrogen on recombination gain in the transition to ground state of Li III," J. Opt. Soc. Am. B 23, 925-931 (2006)

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