Computational modeling of physical processes during laser ablation
| Autor: | Alexander A. Puretzky, Kuan-Ren Chen, J. M. Donato, D. B. Geobegan, J. N. Leboeuf, R. F. Wood, C. L. Liu |
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| Rok vydání: | 1997 |
| Předmět: |
Laser ablation
Materials science Silicon Mechanical Engineering medicine.medical_treatment Laser beam machining technology industry and agriculture Analytical chemistry chemistry.chemical_element Non-equilibrium thermodynamics Photoionization Mechanics Plasma Condensed Matter Physics Ablation complex mixtures Laser annealing chemistry Physics::Plasma Physics Mechanics of Materials medicine General Materials Science Physics::Atomic Physics |
| Zdroj: | Materials Science and Engineering: B. 47:70-77 |
| ISSN: | 0921-5107 |
| DOI: | 10.1016/s0921-5107(96)01883-1 |
| Popis: | A combined theoretical and experimental effort to model various physical processes during laser ablation of solids using a variety of computational techniques is described. Currently the focus of the modeling is on the following areas: (a) rapid transformations through the liquid and vapor phases under possibly nonequilibrium thermodynamic conditions induced by laser-solid interactions; (b) breakdown of the vapor into a plasma in the early stages of ablation through both electronic and photoionization processes; (c) hydrodynamic behavior of the vapor/plasma during and after ablation; and (d) the effects of initial conditions in the vapor, in particular, the nature of the initial velocity distribution, on the characteristics of subsequent vapor expansion. The results from the modeling will be compared with experimental observations where possible. |
| Databáze: | OpenAIRE |
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