Format

Send to

Choose Destination
See comment in PubMed Commons below
Phys Rev Lett. 2004 Jun 25;92(25 Pt 1):255003. Epub 2004 Jun 23.

Instability versus equilibrium propagation of a laser beam in plasma.

Author information

  • 1Theoretical Division, Los Alamos National Laboratory, MS-B213, Los Alamos, NM 87545, USA.

Abstract

We obtain, for the first time, an analytic theory of the forward stimulated Brillouin scattering instability of a spatially and temporally incoherent laser beam that controls the transition between statistical equilibrium and nonequilibrium (unstable) self-focusing regimes of beam propagation. The stability boundary may be used as a comprehensive guide for inertial confinement fusion designs. Well into the stable regime, an analytic expression for the angular diffusion coefficient is obtained, which provides an essential correction to a geometric optic approximation for beam propagation.

PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Physical Society
    Loading ...
    Write to the Help Desk