Issue |
Eur. Phys. J. AP
Volume 16, Number 2, November 2001
|
|
---|---|---|
Page(s) | 131 - 139 | |
Section | Imaging, Microscopy and Spectroscopy | |
DOI | https://doi.org/10.1051/epjap:2001202 | |
Published online | 15 November 2001 |
https://doi.org/10.1051/epjap:2001202
Numerical modeling of the transmission of breakdown plasma generated in water during laser shock processing
Coopération Laser Franco-Allemande (CLFA),
16 bis avenue Prieur de la Côte d'Or, 94114 Arcueil Cedex, France
Corresponding author: asollier@clfa.fr
Received:
9
February
2001
Revised:
28
June
2001
Accepted:
13
July
2001
Published online: 15 November 2001
The transmission of breakdown plasma generated in water during laser shock processing experiments was investigated theoretically. A numerical model based on a rate equation formalism has been developed to calculate the characteristics (peak irradiance and duration) of the laser pulses transmitted through the breakdown plasmas generated in water. Results are in good agreement with previous experimental data for 25 ns−1064 nm laser pulses. Above 10 GW/cm2, the transmitted peak irradiance saturates and the transmission starts to decrease. The results have been extended to shorter wavelengths (532 and 355 nm). At 1064 nm, the breakdown process is dominated by avalanche ionization, whereas for shorter wavelengths, multiphoton ionization plays the major role.
PACS: 52.50.Jm – Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.) / 52.65.-y – Plasma simulation
© EDP Sciences, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.