Analysis of the expansion of rear and front-side laser ablation plasmas
With transparent target materials it is possible to get both front-side and rear-side laser ablation. Rear-side laser ablationhas been investigated as a new configuration for thin film deposition of transparent materials. In order to study thefeatures of this configuration, the analysis of the propa...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2003 |
| País: | México |
| Institución: | Universidad Nacional Autónoma de México |
| Repositorio: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:94216110 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=94216110 |
| Access Level: | acceso abierto |
| Palabra clave: | Física, Astronomía y Matemáticas Thin film Shock wave Laser ablation |
| Sumario: | With transparent target materials it is possible to get both front-side and rear-side laser ablation. Rear-side laser ablationhas been investigated as a new configuration for thin film deposition of transparent materials. In order to study thefeatures of this configuration, the analysis of the propagation of laser ablation plumes of the rear and front-side plasmaswas performed. The shock wave associated with rear and front-side ablation plumes were recorded by shadowgraphy andthe corresponding velocities were determined in each case. We found a spherical wave front in both cases, with the shockwave of the rear-side plasma having a higher velocity. Optical emission spectroscopy measurements were carried out inorder to identify the excited species present in each plasma |
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