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Features in the ion emission of Cu, Al, and C plasmas produced by ultrafast laser ablation.
- Source :
-
Physics of Plasmas . Dec2015, Vol. 22 Issue 12, p1-7. 7p. 1 Diagram, 8 Graphs. - Publication Year :
- 2015
-
Abstract
- The bi-modal nature of charge integrated ion kinetic energy distributions, which result from ultrafast laser produced plasmas, is discussed in this paper. A negatively biased Faraday cup was used as a charge collector to measure ion distributions from three different solid targets that had been irradiated with an ultrafast laser in the fluence range 0:1-1 J/cm². A bi-modal time of flight distribution is found for all three targets (C, Al, and Cu). In the case of the metallic targets (Al and Cu), high- and low-kinetic energy peaks exhibit quite different dependencies on laser fluence, whereas for the semi-metallic target (C), both peaks scale similarly with ultrafast laser fluence. The results are discussed within the framework of a one dimensional capacitor model resulting in ion acceleration. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1070664X
- Volume :
- 22
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Physics of Plasmas
- Publication Type :
- Academic Journal
- Accession number :
- 112078929
- Full Text :
- https://doi.org/10.1063/1.4937800