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Features in the ion emission of Cu, Al, and C plasmas produced by ultrafast laser ablation

Kelly, T. J.; Butler, T.; Walsh, N.; Hayden, P.; Costello, J. T.


T. J. Kelly

T. Butler

N. Walsh

P. Hayden

J. T. Costello


© 2015 AIP Publishing LLC. 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.


Kelly, T. J., Butler, T., Walsh, N., Hayden, P., & Costello, J. T. (2015). Features in the ion emission of Cu, Al, and C plasmas produced by ultrafast laser ablation. Physics of Plasmas, 22(12), Article 123112.

Journal Article Type Article
Acceptance Date Dec 1, 2015
Online Publication Date Dec 16, 2015
Publication Date 2015-12
Deposit Date Jul 18, 2016
Publicly Available Date Oct 27, 2022
Journal Physics of plasmas
Print ISSN 1070-664X
Electronic ISSN 1089-7674
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 22
Issue 12
Article Number 123112
Keywords Lasers
Public URL
Publisher URL
Additional Information Copy of article first published in Physics of plasmas, 2015, v.22, issue 12.


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