Vol. 27, issue 12, article # 2

Apeksimov D. V., Bukin O. A., Golik S. S., Zemlyanov A. A., Iglakova A. N., Kabanov A. M., Kuchinskaya O. A., Matvienko G. G., Oshlakov V. K., Petrov A. V., Sokolova E. B., Khoroshaeva E. E. Spatial characteristics of the filamentation region of gigawatt laser pulses at their various focusing along an atmospheric path. // Optika Atmosfery i Okeana. 2014. V. 27. No. 12. P. 1042-1046 [in Russian].
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Abstract:

Results of experiments on controlling the position and length of the filamentation region of femtosecond laser pulses along an atmospheric path 30 m long using different initial spatial focusing are presented. A dependence of the filamentation region length on the values of numerical aperture of beam is derived. The obtained data on the filamentation region length and the amount of filaments are compared with the results of earlier experiments and data of other authors.

Keywords:

laser radiation, femtosecond pulse, self-focusing, filamentation, atmosphere, focusing, spectrum

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