Laser plasma plume structure and dynamics in the ambient air: The early stage of expansion

Journal Article · Sun May 15 00:00:00 EDT 2011 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3581076· OSTI ID:21560254

Cirisan, M; Jouvard, J M; Lavisse, L ^[1]; Hallo, L ^[2]; Oltra, R ^[3]

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1. Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 5209 CNRS - Universite de Bourgogne, 1 allee des Granges Forestier, F-71100 Chalon-Sur-Saone (France)
2. CELIA, UMR 5107 - Universite Bordeaux 1, 351 cours de La Liberation, 33405 Talence Cedex (France)
3. Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 5209 CNRS - Universite de Bourgogne, 9 Avenue Alain Savary, F-21078 Dijon Cedex (France)

Laser ablation plasma plume expanding into the ambient atmosphere may be an efficient way to produce nanoparticles. From that reason it would be interesting to study the properties of these laser induced plasmas formed under conditions that are known to be favorable for nanoparticles production. In general, plume behavior can be described as a two-stage process: a 'violent' plume expansion due to the absorption of the laser beam energy (during the laser pulse) followed by a fast adiabatic expansion in the ambient gas (after the end of the laser pulse). Plasma plume may last a few microseconds and may have densities 10{sup -6} times lower than the solid densities at temperatures close to the ambient temperature. Expansion of the plasma plume induced by the impact of a nanosecond laser beam ({lambda} 1064 nm) on the surface of metallic samples in the open air has been investigated by means of fast photography. Spatio-temporal evolution of the plume at the early stage of its expansion (first 330 ns) has been recorded. Structure and dynamics of the plasma plume have been investigated and compared to numerical simulations obtained with a hydro-code, as well as some scaling laws. In addition, measurements using different sample materials (Al, Fe, and Ti) have been performed in order to analyze the influence of target material on plume expansion.

• OSTI ID: 21560254
• Journal Information: Journal of Applied Physics, Vol. 109, Issue 10; Other Information: DOI: 10.1063/1.3581076; (c) 2011 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ABLATION
ABSORPTION
ALUMINIUM
AMBIENT TEMPERATURE
COMPUTERIZED SIMULATION
DENSITY
ELECTRON TEMPERATURE
EXPANSION
ION TEMPERATURE
IRON
LASER RADIATION
LIGHT TRANSMISSION
NANOSTRUCTURES
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLUMES
PULSES
SOLIDS
SURFACES
TITANIUM
ELECTROMAGNETIC RADIATION
ELEMENTS
METALS
PHYSICAL PROPERTIES
RADIATIONS
SIMULATION
SORPTION
TRANSITION ELEMENTS
TRANSMISSION