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