Enhanced Raman scattering of a rippled laser beam in a magnetized collisional plasma

• Published in: Laser and particle beams Vol. 22; no. 1; pp. 35 - 40
• Main Authors: SAINI, NARESHPAL SINGH, GILL, TARSEM SINGH
• Format: Journal Article
• Language: English
• Published: New York, USA Cambridge University Press 01.03.2004
• Subjects: Collisional plasma; Collisional plasmas; Coupling; Electric fields; International Conference on the Frontiers of Plasma Physics and Technology; Laser beams; Lasers; Magnetic fields; Plasma; Raman scattering; Raman spectra; Rippled laser beam; Rippled laser beam; Coupling; Raman scattering; Collisional plasma
• ISSN: 0263-0346; 1469-803X
• DOI: 10.1017/S0263034604221073

In the laser–plasma interaction experiments, self-focusing and filamentation affect quite a large number of other parametric processes including stimulated scattering processes. Nonlinearity considered in the present problem is the collisional type. The coupling between the main beam, ripple, and excited electron plasma wave is strong. Authors have investigated the growing interaction of a rippled laser beam with an electron plasma wave leading to enhanced Raman scattering. An expression for scattered power is derived and the effect of the externally applied magnetic field on the enhancement of scattered power is observed. From computational results, it is observed that the effect of increased intensity of the main beam leads to suppression of power associated with the Raman scattered wave.