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Author Osipov, V. V. ♦ Solomonov, V. I. ♦ Platonov, V. V. ♦ Snigireva, O. A. ♦ Ivanov, M. G. ♦ Lisenkov, V. V.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ATOMIC AND MOLECULAR PHYSICS ♦ PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ AIR ♦ ATOMS ♦ CARBON DIOXIDE LASERS ♦ CARBON IONS ♦ GRAPHITE ♦ ION EMISSION ♦ LASER RADIATION ♦ MOLECULES ♦ PEAK LOAD ♦ PLASMA ♦ PLUMES ♦ PULSES ♦ SPECTROSCOPY ♦ SURFACES ♦ TEMPERATURE RANGE 0273-0400 K ♦ CARBON ♦ CHARGED PARTICLES ♦ ELECTROMAGNETIC RADIATION ♦ ELEMENTS ♦ EMISSION ♦ FLUIDS ♦ GAS LASERS ♦ GASES ♦ IONS ♦ LASERS ♦ MINERALS ♦ NONMETALS ♦ RADIATIONS ♦ TEMPERATURE RANGE
Abstract Spectral and kinetic characteristics of a plume formed in the vicinity of a graphite target exposed to radiation from a pulsed CO{sub 2} laser at 10.6 {mu}m with a peak power of 9 kW (pulse energy 1.69 J, pulse duration 330 {mu}s at the 0.1 level) in air are studied at room temperature. It is shown that the plume propagating at a right angle to the target surface and at an angle of 45{sup 0} to the laser radiation is a nonequilibrium gas plasma flow at a temperature of the order of 10 kK; its shape and size are determined by the shape and power of the laser pulse. Emission of C{sup +} ions and C{sub 2} molecules is excited in the plume. The temperature and emission are sustained by the energy of the exothermic reaction of association of carbon atoms and the vibrationally excited molecules formed in it. (interaction of laser radiation with matter. laser plasma)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2005-05-31
Publisher Place United States
Journal Quantum Electronics
Volume Number 35
Issue Number 5


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