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- Iosif E Kourakis, P. K. Shukla
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2004

Theoretical and numerical studies are presented of the amplitude modulation of electron-acoustic waves (EAWs) propagating in space plasmas whose constituents are inertial cold electrons, Boltzmannâ€¦ (More)

- P. K. Shukla, Iosif E Kourakis, B. Eliasson, Matti Marklund, Lennart Stenflo
- Physical review letters
- 2006

We consider the modulational instability of nonlinearly interacting two-dimensional waves in deep water, which are described by a pair of two-dimensional coupled nonlinear SchrÃ¶dinger equations. Weâ€¦ (More)

- Iosif E Kourakis, P. K. Shukla
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2005

We investigate the nonlinear propagation of electromagnetic waves in left-handed materials. For this purpose, we consider a set of coupled nonlinear SchrÃ¶dinger (CNLS) equations, which govern theâ€¦ (More)

- Hasan Ahmed, M. E. Dieckmann, +11 authors Marco Borghesi
- Physical review letters
- 2013

We report on the temporally and spatially resolved detection of the precursory stages that lead to the formation of an unmagnetized, supercritical collisionless shock in a laser-driven laboratoryâ€¦ (More)

- Georgia Sarri, A. Macchi, +15 authors Marco Borghesi
- Physical review letters
- 2012

The dynamics of magnetic fields with an amplitude of several tens of megagauss, generated at both sides of a solid target irradiated with a high-intensity (~10(19) W/cm(2)) picosecond laser pulse,â€¦ (More)

- Iosif E Kourakis, Nikos Lazarides, G. P. Tsironis
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2007

The self-modulation of waves propagating in nonlinear magnetic metamaterials is investigated. Considering the propagation of a modulated amplitude magnetic field in such a medium, we show that theâ€¦ (More)

- Afshin Danehkar, Iosif E Kourakis, Margreth Hellberg
- 2014 IEEE 41st International Conference on Plasmaâ€¦
- 2014

We investigate the existence conditions and propagation properties of electron-acoustic solitary waves in a plasma consisting of an electron beam fluid, a cold electron fluid, and a hot suprathermalâ€¦ (More)

- N. L. Tsitsas, Nikolaos Rompotis, Iosif E Kourakis, P. G. Kevrekidis, Dimitrios J. Frantzeskakis
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2009

Starting from Maxwell's equations, we use the reductive perturbation method to derive a second-order and a third-order nonlinear SchrÃ¶dinger equation, describing ultrashort solitons in nonlinearâ€¦ (More)

- K. J. H. Law, P. G. Kevrekidis, Vassilis Koukouloyannis, Iosif E Kourakis, Dimitrios J. Frantzeskakis, A. R. Bishop
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2008

We consider a prototypical dynamical lattice model, namely, the discrete nonlinear SchrÃ¶dinger equation on nonsquare lattice geometries. We present a systematic classification of the solutions thatâ€¦ (More)

- Ashwani K. Sharma, Sudip Misra, S. K. Mishra, Iosif E Kourakis
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2013

Optical beams with null central intensity have potential applications in the field of atom optics. The spatial and temporal evolution of a central shadow dark hollow Gaussian (DHG) relativistic laserâ€¦ (More)