%0 Journal Article
%T Behaviour of pulsed vortex beam with high topological charge in ionized dielectrics
%A Khasanov O.K.
%A Fedotova O.M.
%A Smirnova T.V.
%A Petukh Yu.N.
%J Ukrainian Journal of Physical Optics
%D 2008
%I Institute of Physical Optics
%X Dynamics of powerful femtosecond singular-phase pulsed beams in a dielectric medium is analyzed under the ionization conditions. The multiphoton ionization is revealed to contribute to the stable (quasi-soliton) regime of pulse propagation over the distances exceeding several diffraction lengths.
%K femtosecond pulsed beam
%K singular phase
%K topological charge
%K Kerr nonlinearity
%K multiphoton ionization
%K free-electron plasma
%U http://www.ifo.lviv.ua/journal/2008/2008_1_9_02.html