Time-resolved PLIF imaging of Cu in a laser-ablated copper plasma plume

Author

Zerkle, David K. ; Sappey, Andrew D.

Author_Institution

Div. of Chem. Sci. & Technol., Los Alamos Nat. Lab., NM, USA

Volume

24

Issue

1

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

37

Lastpage

38

Abstract

Planar laser-induced fluorescence (PLIF) has been used to determine the relative number density of ground state copper atoms in laser-ablated plasma plumes. An ablation laser power flux of ~1.5 GW/cm ² is applied to a solid copper target in a background gas, producing a plasma plume suitable for studying homogeneous copper vapor condensation. Density is measured at postablation time delays ranging from 5 μs to 10 ms with 1-100 torr of either argon or helium as the background gas. Planar laser-induced fluorescence images are used to spatially resolve the relative density within the plume, The decrease in density is due to the homogeneous condensation of copper vapor to form particulate

Keywords

copper; fluorescence; laser ablation; plasma density; plasma diagnostics; plasma production by laser; time resolved spectra; 1 to 100 torr; Cu; ablation laser power flux; ground state Cu atoms; homogeneous condensation; laser-ablated Cu plasma plume; relative number density; solid Cu target; time resolved planar laser-induced fluorescence imaging; Atom lasers; Atomic beams; Atomic measurements; Copper; Fluorescence; Gas lasers; Laser ablation; Plasma density; Plasma measurements; Stationary state;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.491679

Filename

491679