Mechanisms affecting kinetic energies of laser‐ablated materials
Autor: | J. N. Leboeuf, R. F. Wood, C. L. Liu, Kuan-Ren Chen, David B. Geohegan, Alexander A. Puretzky, J. M. Donato |
---|---|
Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 14:1111-1114 |
ISSN: | 1520-8559 0734-2101 |
DOI: | 10.1116/1.580278 |
Popis: | A dynamic source effect was found to accelerate the plume expansion velocity much higher than that from a conventional free‐expansion model. A self‐similar theory and a hydrodynamic model are developed to study this effect, which may help to explain experimentally observed high front expansion velocity. Background gas can also affect the kinetic energies. High background gas may cause the ablated materials to go backward. Experimentally observed plume splitting is also discussed. |
Databáze: | OpenAIRE |
Externí odkaz: |