Influence of absorption mechanisms on laser-induced plasma plume
Rozman, Robert (Author), Grabec, Igor (Author), Govekar, Edvard (Author)

URLURL - Presentation file, Visit http://dx.doi.org/10.1016/j.apsusc.2007.11.029 This link opens in a new window

In modelling laser-induced plasma plume formation, the proper description of laser absorption in the plasma plays an important role. In the present model, absorption is described by means of three different mechanisms: inverse bremsstrahlung (IB), photoionization (PI) and absorption by small condensed clusters. Numerical solutions of the model are given for KrF laser beam irradiation (wavelength l=248 nm) impinging on a nickel target at various fluences. The influence of particular absorption mechanisms on the absorbed laser beam energy in the plasma plume during the pulse is shown for different fluences. Using all three absorption mechanisms, the calculated plasma properties show good agreement with the experimental results of other authors.

Keywords:laserski snop, absorpcijski mehanizmi, plazma, pulzni laserji, modeliranje, numerične rešitve, laser-matter interaction, absorption in plasma, modelling
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Number of pages:str. 3295-3305
Numbering:Letn. 254, št. 11
ISSN on article:0169-4332
COBISS.SI-ID:10438683 Link is opened in a new window
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Record is a part of a journal

Title:Applied Surface Science
Shortened title:Appl. surf. sci.
COBISS.SI-ID:3283215 This link opens in a new window

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