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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 31, Iss. 1 — Jan. 1, 2014
  • pp: 53–61

Theoretical and numerical study of the interaction of a nanosecond laser pulse with a copper target for laser-induced breakdown spectroscopy applications

Amina Kahina Aitoumeziane, Abdelhamid Sari, Bachir Liani, and Jean-Denis Parisse  »View Author Affiliations


JOSA B, Vol. 31, Issue 1, pp. 53-61 (2014)
http://dx.doi.org/10.1364/JOSAB.31.000053


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Abstract

This work is a presentation of a modeling approach aimed at describing laser–matter interaction under laser-induced breakdown spectroscopy operating conditions. In order to set up a simple numerical tool to compute our model, only the most relevant processes appearing during the interaction were considered. This allowed us to develop a quick and rather accurate idea about how some physical parameters evolve during the interaction, so that the optimization of the laser beam parameters for better analytical results would be possible. For a basic understanding we used for our numerical computation a nanosecond laser pulse with an ideal Gaussian temporal profile and a pure Cu target. In order to optimize the interaction parameters, this study was focused on the effect of some of the laser parameters such as the wavelength (UV, Vis, IR), the pulse duration, and the irradiation on the results of the interaction. An investigation of the influence of some processes such as the vaporization effects and the plasma shielding was also included. The processes occuring on the material surface were closely examined as well. A comparison between the use of temperature-dependent and temperature-independent optical parameters was conducted, and their influence on the results was investigated. The use of variable optical parameters is revealed to be a means to correct the values of the temperature distribution inside the material and convert them into more realistic ones. Our code was first validated when operating under the same conditions used by other authors, and then it was used to present our proper contributions, as previously stated.

© 2013 Optical Society of America

OCIS Codes
(140.6810) Lasers and laser optics : Thermal effects
(160.3900) Materials : Metals
(350.5400) Other areas of optics : Plasmas
(300.6365) Spectroscopy : Spectroscopy, laser induced breakdown

ToC Category:
Spectroscopy

History
Original Manuscript: June 24, 2013
Revised Manuscript: November 4, 2013
Manuscript Accepted: November 11, 2013
Published: December 9, 2013

Citation
Amina Kahina Aitoumeziane, Abdelhamid Sari, Bachir Liani, and Jean-Denis Parisse, "Theoretical and numerical study of the interaction of a nanosecond laser pulse with a copper target for laser-induced breakdown spectroscopy applications," J. Opt. Soc. Am. B 31, 53-61 (2014)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-31-1-53

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