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Proceedings Paper

Photoacoustic and optical imaging of the femtosecond filament in water
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Paper Abstract

We report on a new experimental technique aimed to investigate femtosecond filamentation process in transparent condensed dielectrics. The proposed method is based on a highly resolved shadow photography and wideband (about 100MHz) photoacoustic imaging. We demonstrate, that combination of these techniques allows conducting comprehensive filament investigation by retrieving the value of the energy deposition into a medium, plasma electron density and the size of the filament formation region. Moreover, applying these techniques we studied the dependence of filament properties on a filamentation regime.

Paper Details

Date Published: 30 April 2019
PDF: 8 pages
Proc. SPIE 11026, Nonlinear Optics and Applications XI, 1102606 (30 April 2019); doi: 10.1117/12.2520987
Show Author Affiliations
Boris Rumiantsev, M.V. Lomonosov Moscow State Univ. (Russian Federation)
Evgenii Mareev, M.V. Lomonosov Moscow State Univ. (Russian Federation)
Anton Bychkov, M.V. Lomonosov Moscow State Univ. (Russian Federation)
National Univ. of Science and Technology (Russian Federation)
Vladimir Makarov, M.V. Lomonosov Moscow State Univ. (Russian Federation)
Aleksandr Karabutov, M.V. Lomonosov Moscow State Univ. (Russian Federation)
National Univ. of Science and Technology (Russian Federation)
Elena Cherepetskaya, National Univ. of Science and Technology (Russian Federation)
Fedor Potemkin, M.V. Lomonosov Moscow State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 11026:
Nonlinear Optics and Applications XI
Mario Bertolotti; Alexei M. Zheltikov, Editor(s)

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