Numerical analysis of strong Langmuir turbulence excited by transverse plasmons in a laser plasma

Abstract

AbstractLangmuir waves excited by transverse pumping plasmons near the critical surface in a laser-plasma may collapse, leading to the formation of a density cavity owing to the ponderomotive force. The collapse behavior of electromagnetic waves, Langmuir waves and ion-sound waves are studied numerically. The interactions of the three-wave system will lead to the tendency for an equilibration of energy over both the transverse and Langmuir plasmons with the same frequency near ωpe, which is shown in our numerical analysis.