Ionization Processes in a Carbon Aerosol Upon Exposure to Long Laser Pulses. II
Balandin S.F. Donchenko V.A. Myshkin V.F. Potekaev A.I. Khan V.A. Orazymbetova A.K. Ospanova N.A.
August 2022Springer
Russian Physics Journal
2022#65Issue 4683 - 687 pp.
An experimental setup and a technique for measuring the temperature and concentration of carbon and barium oxide particles in an ionized dispersed medium are described. It is shown that in a wide-aperture Nd laser beam at a wavelength of 1.06 μm with a pulse duration of ~1 ms, the ionization threshold of a carbon dispersed medium is lower than the ionization threshold of a focused beam. The ionization threshold is 5−10 times higher for the medium with barium oxide particles (with a low ionization potential) than for the medium with carbon particles for both focused and wide-aperture beams. It has been experimentally confirmed that exothermic reactions prevail over other processes during ionization of the examined media.
carbon , chemical reactions , intensity , ionization , laser radiation , optical breakdown , plasma , pulse
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V. E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russian Federation
V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University, Tomsk, Russian Federation
National Research Tomsk State University, Tomsk, Russian Federation
National Research Tomsk Polytechnic University, Tomsk, Russian Federation
Academy of Logistics and Transport, Almaty, Kazakhstan
V. E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences
V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University
National Research Tomsk State University
National Research Tomsk Polytechnic University
Academy of Logistics and Transport
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