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The structural features of wave collapse in medium with normal group velocity dispersion

  • Atoms, Spectra, Radiation
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Abstract

The dynamic characteristics of self-action in three-dimensional wave packets described by the nonlinear Schrödinger equation with a hyperbolic space operator were studied analytically and numerically. The class of the initial wave field distributions for which self-focusing effects predominated over dispersion spreading and caused the arising of wave collapses was considered. The collapse of tubular wave packets was shown to be accompanied by packet shape changes during its contraction to the axis of the system. The nonlinear stabilization of collapses resulted in wave field fragmentation in the longitudinal direction followed by the expansion of the bunches thus formed along the axis. The dynamics of collapses was numerically studied taking into account medium nonlinearity saturation and nonlinear dissipation.

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Authors and Affiliations

  1. Institute of Applied Physics, Russian Academy of Sciences, ul. Ul’yanova 46, Nizhni Novgorod, 603600, Russia

    N. A. Zharova, A. G. Litvak & V. A. Mironov

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  1. N. A. Zharova
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  2. A. G. Litvak
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  3. V. A. Mironov
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Translated from Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 123, No. 4, 2003, pp. 726–737.

Original Russian Text Copyright © 2003 by Zharova, Litvak, Mironov.

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Zharova, N.A., Litvak, A.G. & Mironov, V.A. The structural features of wave collapse in medium with normal group velocity dispersion. J. Exp. Theor. Phys. 96, 643–652 (2003). https://doi.org/10.1134/1.1574537

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