The results of experimental and theoretical studies of femtosecond laser pulse filamentation with use of a bimorph deformable mirror are presented. The mirror allows controlling the position of the filamentation domain throughout a model path due to phase distortions of different parts of a laser beam, determining localization of filaments and high-intensity channels in a beam cross section, and forming long (>100 m) high-intensity (1011–1012 W/cm2) weakly diverging plasma-free channels.
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The work was financially supported by the Russian Science Foundation (agreement no. 18-77-00028).
Translated by O. Ponomareva
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Apeksimov, D.V., Geints, Y.E., Zemlyanov, A.A. et al. The Effect of Phase Aberrations on the Position and Length of the Filamentation Domain. Atmos Ocean Opt 32, 109–116 (2019). https://doi.org/10.1134/S1024856019020027
- femtosecond laser pulse
- deformable mirror