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Proceedings Paper

Optical emission accompanying pulsed laser ablation of graphite: experiment and kinetics
Author(s): F. Stokker-Cheregi; Carmen Ristoscu; V. Stancalie; Ion N. Mihailescu
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Paper Abstract

Atomic data are needed for the quantitative interpretation of experimental spectroscopic data in laser ablation devices. They include cross sections and rate coefficients for various processes such as ionization, excitation, recombination, charge exchange, and also transition probabilities for line emission. This work presents results on electron impact excitation and ionization per photon coefficients as related to the interpretation of plume emissions accompanying 248 nm laser ablation of graphite in vacuum. We used the Atomic Data and Analysis Structure (ADAS) computer package and the generalized collisional-radiative model to simulate experimental line brightness and emissivities from plasma.

Paper Details

Date Published: 21 October 2004
PDF: 7 pages
Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); doi: 10.1117/12.582899
Show Author Affiliations
F. Stokker-Cheregi, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Carmen Ristoscu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
V. Stancalie, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Ion N. Mihailescu, National Institute for Laser, Plasma, and Radiation Physics (Romania)


Published in SPIE Proceedings Vol. 5581:
ROMOPTO 2003: Seventh Conference on Optics
Valentin I. Vlad, Editor(s)

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