Anomalous Absorption of Very High-Intensity Laser Pulses Propagating through Moderately Dense Plasma
- 23 June 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 78 (25) , 4765-4768
- https://doi.org/10.1103/physrevlett.78.4765
Abstract
The results of a systematic study of the propagation of very high-intensity laser pulses through slabs of plasma of several tens of microns are presented. One-dimensional and two-dimensional electron parametric instabilities are evidenced. They lead to a rapid longitudinal and transverse heating, and to filamentary structures which progressively merge. The heating results in highly energetic electrons with energy of several tens of MeV. Correlatively, a strong attenuation rate of the electromagnetic wave is observed.Keywords
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