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Title: Efficiency of generation of highly ionised atoms under resonance absorption of CO{sub 2}-laser radiation

Abstract

We consider the generation of beams of highly ionised atoms in solid targets irradiated with CO{sub 2}-laser pulses. We present experimental results on generation of Mg and Pb ions from laser plasma at a radiation flux density q Almost-Equal-To 10{sup 14} W cm{sup -2}. We have developed a theoretical model describing the plasma heating by CO{sub 2}-laser radiation at a high pulse intensity on the target, taking into account the ponderomotive forces affecting the behaviour of the interaction of light with the plasma. It is shown that in the case of resonance absorption of laser radiation by the plasma, the efficiency of generation of highly ionised atoms of the target substance is higher than the efficiency of generation in the case of classical absorption. The results of the numerical calculation by the developed model are in good agreement with the experiment.

Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
22043654
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 41; Journal Issue: 10; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ATOMS; BEAMS; CARBON DIOXIDE LASERS; DENSITY; EFFICIENCY; INTERACTIONS; IONIZATION; LASER RADIATION; LEAD IONS; PLASMA; PLASMA HEATING; PONDEROMOTIVE FORCE; RADIATION FLUX; RESONANCE ABSORPTION; SOLIDS

Citation Formats

Gus'kov, Sergei Yu, Demchenko, N N, Makarov, K N, Rozanov, Vladislav B, Satov, Yu A, and Sharkov, Boris Yu. Efficiency of generation of highly ionised atoms under resonance absorption of CO{sub 2}-laser radiation. United States: N. p., 2011. Web. doi:10.1070/QE2011V041N10ABEH014688.
Gus'kov, Sergei Yu, Demchenko, N N, Makarov, K N, Rozanov, Vladislav B, Satov, Yu A, & Sharkov, Boris Yu. Efficiency of generation of highly ionised atoms under resonance absorption of CO{sub 2}-laser radiation. United States. doi:10.1070/QE2011V041N10ABEH014688.
Gus'kov, Sergei Yu, Demchenko, N N, Makarov, K N, Rozanov, Vladislav B, Satov, Yu A, and Sharkov, Boris Yu. 2011. "Efficiency of generation of highly ionised atoms under resonance absorption of CO{sub 2}-laser radiation". United States. doi:10.1070/QE2011V041N10ABEH014688.
@article{osti_22043654,
title = {Efficiency of generation of highly ionised atoms under resonance absorption of CO{sub 2}-laser radiation},
author = {Gus'kov, Sergei Yu and Demchenko, N N and Makarov, K N and Rozanov, Vladislav B and Satov, Yu A and Sharkov, Boris Yu},
abstractNote = {We consider the generation of beams of highly ionised atoms in solid targets irradiated with CO{sub 2}-laser pulses. We present experimental results on generation of Mg and Pb ions from laser plasma at a radiation flux density q Almost-Equal-To 10{sup 14} W cm{sup -2}. We have developed a theoretical model describing the plasma heating by CO{sub 2}-laser radiation at a high pulse intensity on the target, taking into account the ponderomotive forces affecting the behaviour of the interaction of light with the plasma. It is shown that in the case of resonance absorption of laser radiation by the plasma, the efficiency of generation of highly ionised atoms of the target substance is higher than the efficiency of generation in the case of classical absorption. The results of the numerical calculation by the developed model are in good agreement with the experiment.},
doi = {10.1070/QE2011V041N10ABEH014688},
journal = {Quantum Electronics (Woodbury, N.Y.)},
number = 10,
volume = 41,
place = {United States},
year = 2011,
month =
}
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