Energy distribution of ions produced by excimer-laser ablation of solid and molten targets |
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| Authors: | Y. Franghiadakis C. Fotakis P. Tzanetakis |
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| Affiliation: | (1) School of Technological Applications, Technological Education Institute, P.O. Box 140, 71110, Estavromenos, Heraklion, Crete, Greece, GR;(2) Physics Department, University of Crete, P.O. Box 71003 Heraklion, Crete, Greece, GR;(3) Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, P.O. Box 1527, 71110 Heraklion, Crete, Greece, GR |
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| Abstract: | 2 . The measurements reveal components with different charge-to-mass ratio and distinct components with the same charge/mass ratio. The most probable kinetic energy has values of several tens of eV for singly charged ions, and is larger by a factor exceeding 2 for doubly charged ions. The role of target material and state, solid or liquid, laser photon energy and fluence has been investigated and is discussed in comparison to the findings of previous investigations. An estimate of the electrostatic plasma potential in PLA, based on electron loss rate arguments, is presented to account for the high ion energies observed. Received: 9 March 1998 / Accepted: 27 November 1998 / Published online: 24 February 1999 |
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| Keywords: | PACS: 79.20.Ds 07.75.+h |
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