# Nonlinear dispersion and transverse profile of intense electromagnetic waves, propagating through electron-positron-ion hot magnetoplasma

## Abstract

Self-guided nonlinear propagation of intense circularly-polarized electromagnetic waves in a hot electron-positron-ion magnetoplasma is studied. Using a relativistic fluid model, a nonlinear equation is derived, which describes the interaction of the electromagnetic wave with the plasma in the quasi-neutral approximation. Transverse Eigen modes, the nonlinear dispersion relation and the group velocity are obtained. Results show that the transverse profile in the case of magnetized plasma with cylindrical symmetry has a radially damping oscillatory form. Effect of applying external magnetic fields, existence of the electron-positron pairs, changing the amplitude of the electromagnetic wave, and its polarization on the nonlinear dispersion relation and Eigen modes are studied.

- Authors:

- Department of physics, University of Mohaghegh Ardabili, PO Box 179, Ardabil (Iran, Islamic Republic of)

- Publication Date:

- OSTI Identifier:
- 22408066

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; CYLINDRICAL CONFIGURATION; DISPERSION RELATIONS; ELECTROMAGNETIC RADIATION; ELECTRONS; FLOW MODELS; HOT PLASMA; IONS; MAGNETIC FIELDS; NONLINEAR PROBLEMS; POLARIZATION; POSITRONS; RELATIVISTIC RANGE; SYMMETRY; VELOCITY

### Citation Formats

```
Javan, N. Sepehri, E-mail: sepehri-javan@uma.ac.ir, and Homami, S. H. H..
```*Nonlinear dispersion and transverse profile of intense electromagnetic waves, propagating through electron-positron-ion hot magnetoplasma*. United States: N. p., 2015.
Web. doi:10.1063/1.4907659.

```
Javan, N. Sepehri, E-mail: sepehri-javan@uma.ac.ir, & Homami, S. H. H..
```*Nonlinear dispersion and transverse profile of intense electromagnetic waves, propagating through electron-positron-ion hot magnetoplasma*. United States. doi:10.1063/1.4907659.

```
Javan, N. Sepehri, E-mail: sepehri-javan@uma.ac.ir, and Homami, S. H. H.. Sun .
"Nonlinear dispersion and transverse profile of intense electromagnetic waves, propagating through electron-positron-ion hot magnetoplasma". United States.
doi:10.1063/1.4907659.
```

```
@article{osti_22408066,
```

title = {Nonlinear dispersion and transverse profile of intense electromagnetic waves, propagating through electron-positron-ion hot magnetoplasma},

author = {Javan, N. Sepehri, E-mail: sepehri-javan@uma.ac.ir and Homami, S. H. H.},

abstractNote = {Self-guided nonlinear propagation of intense circularly-polarized electromagnetic waves in a hot electron-positron-ion magnetoplasma is studied. Using a relativistic fluid model, a nonlinear equation is derived, which describes the interaction of the electromagnetic wave with the plasma in the quasi-neutral approximation. Transverse Eigen modes, the nonlinear dispersion relation and the group velocity are obtained. Results show that the transverse profile in the case of magnetized plasma with cylindrical symmetry has a radially damping oscillatory form. Effect of applying external magnetic fields, existence of the electron-positron pairs, changing the amplitude of the electromagnetic wave, and its polarization on the nonlinear dispersion relation and Eigen modes are studied.},

doi = {10.1063/1.4907659},

journal = {Physics of Plasmas},

number = 2,

volume = 22,

place = {United States},

year = {Sun Feb 15 00:00:00 EST 2015},

month = {Sun Feb 15 00:00:00 EST 2015}

}