Original scientific paper
Spectroscopic properties of the Li, Zn metals and Li-Zn alloy plasmas generated by XeCl-laser ablation
Srećko Gogić
; Institute of Physics, P.O. Box 304, HR-10000 Zagreb, Croatia
Slobodan Milošević
; Institute of Physics, P.O. Box 304, HR-10000 Zagreb, Croatia
Abstract
Using 308 nm laser ablation, we have produced lithium, zinc and lithium-zinc plasmas and have studied their spectral, temporal and spatial characteristics. In pure lithium plume, linear Stark effect is observed in n2D-2 2P transitions n = 3, 4, 5, 6) up to 0.3 μs after the laser pulse. In pure zinc plume, both atomic and ionic spectral lines are observed. Time evolution of spectral line intensities suggests that the mechanism responsible for population of atomic zinc states is a cascade of ion-electron recombination processes. The ablation of Li-Zn alloy shows much faster decay of Zn spectral features than of Li spectral lines. Therefore, the decomposition of plume into shells of different colours is observab
Keywords
laser ablation; Li; Zn and Li-Zn plasmas; spectral; temporal and spatial characteristics of plume
Hrčak ID:
299942
URI
Publication date:
1.3.1998.
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