Optical emission accompanying pulsed laser ablation of graphite: experiment and kinetics

F. Stokker-Cheregi; Carmen Ristoscu; V. Stancalie; Ion N. Mihailescu

doi:10.1117/12.582899

21 October 2004 Optical emission accompanying pulsed laser ablation of graphite: experiment and kinetics

F. Stokker-Cheregi, Carmen Ristoscu, V. Stancalie, Ion N. Mihailescu

Proceedings Volume 5581, ROMOPTO 2003: Seventh Conference on Optics; (2004) https://doi.org/10.1117/12.582899
Event: ROMOPTO 2003: Seventh Conference on Optics, 2003, Constanta, Romania

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.

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F. Stokker-Cheregi, Carmen Ristoscu, V. Stancalie, and Ion N. Mihailescu "Optical emission accompanying pulsed laser ablation of graphite: experiment and kinetics", Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); https://doi.org/10.1117/12.582899

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