| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5467818 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2017 | 5 Pages |
Abstract
Nonlinear self-focusing of sub-TW power, sub-ps UV pulses generated by Ti:Sapphire/KrF GARPUN-MTW laser facility produces a few hundred randomly distributed filament-like weakly ionized plasma channels in atmospheric air. Arrangement of occasional multiple filaments has been demonstrated by means of amplitude masks with periodic circular and square apertures introduced in the light beam. Diffraction on the apertures overcomes natural stochastic and deterministic radiation inhomogeneities and builds up a regular array of a few hundred filaments persisting over 20Â m.
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Authors
V.D. Zvorykin, S.A. Goncharov, A.A. Ionin, D.V. Mokrousova, S.V. Ryabchuk, L.V. Seleznev, I.V. Smetanin, A.V. Shutov, E.S. Sunchugasheva, N.N. Ustinovskii,