Ponderomotive potential and second harmonic backward Raman scattering in dense quantum plasmas

A theoretical model for Raman backscattering of the second harmonic of an intense laser beam propagating through quantum plasma in presence of an external magnetic field using the quantum hydrodynamical (QHD) model is presented. The effects associated with the Fermi pressure, the Bohm potential and...

Full description

Saved in:
Bibliographic Details
Published inJournal of physics. Conference series Vol. 823; no. 1; pp. 12027 - 12034
Main Authors Singh Rathore, Nisha, Kumar, Punit
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 19.04.2017
Subjects
Backscattering
Electron spin
Electrons
Langmuir waves
Laser beams
Perturbation theory
Phase matching
Physics
Plasmas (physics)
Ponderomotive forces
Raman spectra
Online AccessGet full text

Cover

More Information
Summary:A theoretical model for Raman backscattering of the second harmonic of an intense laser beam propagating through quantum plasma in presence of an external magnetic field using the quantum hydrodynamical (QHD) model is presented. The effects associated with the Fermi pressure, the Bohm potential and the electron spin have been taken into account. The ponderomotive force imparts a longitudinal velocity to the electrons and the electrostatic upper hybrid Langmuir wave is excited. The second-order quantum perturbation theory shows that the second harmonic of the ponderomotive potential arises under the phase matching condition. The dispersion relation for upper hybrid Langmuir wave has been setup.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/823/1/012027