The effect of phase aberrations on the position and length of the filamentation domain
D.V. Apeksimov1, Yu.E. Geints1, A.A. Zemlyanov1, A.N. Iglakova1, A.M. Kabanov1, O.I. Kuchinskaya1,2, G.G. Matvienko1, V.K. Oshlakov1, A.V. Petrov1
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634055, Russia
2National Research Tomsk State University, 36, Lenin Avenue, Tomsk, 634050,Russia
Keywords: фемтосекундный лазерный импульс, филаментация, деформируемое зеркало, femtosecond laser pulse, filamentation, deformable mirror
Subsection: OPTICAL WAVE PROPAGATION
Abstract
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 the beam cross section, and forming long (> 100 m) high-intensity (1011- 1012 W/cm2) weakly diverging plasma-free channels.
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