Ionization processes at the long laser pulses influence on a carbon aerosol. Part II
An experimental device, a measuring technique for the temperature and carbon and barium oxide particles concentration in an ionized dispersed environment are described. It is shown that in a wide-aperture Nd laser beam at a wavelength of 1.06 μm and a pulse duration of ~ 1 mls, the ionization threshold of a carbon dispersed environment is lower than the ionization threshold of a focused beam. The ionization threshold is 5-10 times higher for barium oxide (with a low ionization potential) than for a carbon environment for both focused and wide-aperture beams. It has been experimentally confirmed that exothermic reactions during the environment ionization prevail over other processes.
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Keywords
chemical reactions, carbon, intensity, ionization, plasma, pulse, optical breakdown, laser radiationAuthors
| Name | Organization | |
| Balandin S.F. | V. E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences | bal@iao.ru |
| Donchenko V.A. | V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University; National Research Tomsk State University | don@spti.tsu.ru |
| Myshkin V.F. | National Research Tomsk Polytechnic University | gos100@tpu.ru |
| Potekaev A.I. | National Research Tomsk State University | potekaev@spti.tsu.ru |
| Khan V.A. | V. E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences; National Research Tomsk Polytechnic University | nt.centre@mail.ru |
| Orazymbetova A.K. | Academy of Logistics and Transport | orazymbetova@mail.ru |
| Ospanova N.A. | Academy of Logistics and Transport | osnuak_82@mail.ru |
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