Research Article Open Access

General Properties of 3/2ω0 and 2ω0 Harmonics Emission from Laser Driven Plasmas

A.S.A. Dib and A.H. Belbachir

Abstract

Using a simple model based on the conversion of electron plasma waves into electromagnetic waves through a process of parametric interaction of four waves, the general properties of the  3/2ω0 emission and the 2ω0 emission generated by the interaction of a Gaussian laser pulse with homogeneous plasma are studied. Some known characteristics of these emissions are reproduced within this model and compared to some experimental works. In particular, the two-wing structure of the emitted spectrum, the double-beam structure, the angular distribution and the conversion efficiency are obtained. Moreover, it is found that, the intensity of the backward beam is almost double of that of the forward beam in both emissions, while this later is narrower in the case of the 3/2ω0 emission.

American Journal of Applied Sciences
Volume 5 No. 8, 2008, 1034-1040

DOI: https://doi.org/10.3844/ajassp.2008.1034.1040

Submitted On: 1 September 2007 Published On: 31 August 2008

How to Cite: Dib, A. & Belbachir, A. (2008). General Properties of 3/2ω0 and 2ω0 Harmonics Emission from Laser Driven Plasmas . American Journal of Applied Sciences, 5(8), 1034-1040. https://doi.org/10.3844/ajassp.2008.1034.1040

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Keywords

  • Plasma waves interaction
  • harmonics generation in plasmas
  • 3/2ω0 and 2ω0emissions