Weibel instability due to inverse bremsstrahlung absorption

Journal Article · Sun Jun 01 04:00:00 EDT 1997 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.55.7522· OSTI ID:657418

Bendib, A; Bendib, K ^[1]; Bendib, A; Bendib, K; Sid, A ^[2]; Bendib, K ^[3]

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1. Laboratoire Interaction Laser-Matiere, IRSAMC, UPS, 118 route de Narbonne, 31062 Toulouse Cedex (France)
2. Laboratoire de Physique des Milieux Ionises, Institut de Physique, USTHB, Boite Postale 32, El Alia, Algiers (Algeria)
3. Departement des Sciences Fondamentales, ENP, Boite Postale 182, Algiers (Algeria)

A new Weibel source due to the inverse bremsstrahlung absorption is presented. It has been shown that in homogeneous plasmas, this mechanism may drive strong collisionless Weibel modes with growth rates of order of {gamma}{approximately}10{sup 11}s{sup {minus}1} and negligible group velocities. In the laser-produced plasmas, for short laser wavelengths ({lambda}{sub L}{lt}1{mu}m) and high laser fluxes (I{gt}10{sup 14}W/cm{sup 2}), this Weibel source is most efficient as the ones due to the heat flux and the plasma expansion. The useful scaling law of the convective e-foldings, with respect to the laser and the plasma parameters, is also derived. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 657418
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics Journal Issue: 6 Vol. 55; ISSN PLEEE8; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BREMSSTRAHLUNG
ENERGY ABSORPTION
INERTIAL CONFINEMENT
LASER-PRODUCED PLASMA
PLASMA EXPANSION
PLASMA INSTABILITY
SCALING LAWS