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the plasma edge first absorbs laser energy as a result of changes of temperature, ionization degree, and electron den-
 

Summary: the plasma edge first absorbs laser energy as a result of
changes of temperature, ionization degree, and electron den-
sity. The pressure distribution in the plasma region is rela-
tively complicated and reaches the order of 102
atm. There is
a wave hollow 0.2 mm from the target surface, and this is
related to the production of a rarefaction wave in the plasma
expansion process.
ACKNOWLEDGMENTS
This work was supported by the Trans-Century Training
Programme Foundation for the Talents, by the State Educa-
tion Commission, by the Fok Ying Tung Education Founda-
tion, and by the Nature Science Foundation of Jiansu Province
Z .China .
REFERENCES
1. John F. Ready, Effects of High-Power Laser Radiation, Academic
Press, New York, 1971, pp. 163.
2. F. Cornolti, A. Giulietti, and D. Giulietti, ``Plasma Shape and
Shock Structure in a Laser Spark at Low Gas Density,'' Opt.
Commun., Vol. 57, No. 4, 1986, pp. 249.

  

Source: Ahmed, Farid - Department of Electrical Engineering and Computer Science, Catholic University of America

 

Collections: Engineering