Generation of electric and magnetic fields in the high-intense laser radiation propagation in the atmosphere
V.F. Myshkin1, S.F. Balandin2, V.A. Donchenko3, V.A. Pogodaev2, V.A. Khan1,2, E.S. Abramova4, Yu.I. Kulakov3, M.S. Pavlova4, V.L. Khazan5, D.M. Horohorin1
1National Research Tomsk Polytechnic University, Tomsk, Russia
2V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
3Siberian Physical-Technical Institute, Tomsk, Russia
4Siberian State University of Telecommunications and Information Sciences, Novosibirsk, Russia
5Omsk State Technical University, Omsk, Russia
Keywords: лазерный пробой, канал ионизации, электрические импульсы, магнитное поле, параметры атмосферы, laser breakdown, ionization channel, electrical impulses, magnetic field, atmospheric parameters
Abstract
We present the experimental results on electric and magnetic fields generated under breakdown and pre-breakdown modes of pulsed laser radiation propagation along atmospheric paths. It has been established that quasiperiodic electric and magnetic fields (105-106 Hz, duration of 10-100 ms) are generated during propagation of ms CO2 laser pulses in the atmosphere under breakdown and pre-breakdown modes. The strongest induced electric and magnetic fields are observed at the number of breakdown centers per unit path length NNh = 0.17 m-1. The connection of electric and magnetic fields arising around the ionization channel with the atmospheric parameters is shown.
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