Theory of plasmon decay in dense plasmas and warm dense matter

Abstract

The decay of the Langmuir waves in dense plasmas is not accurately predicted by the prevalent Landau damping theory. A dielectric function theory is introduced, predicting much higher damping than the Landau damping theory. This strong damping is in better agreement with the experimentally observed data in metals. It is shown that the strong plasmon decay leads to the existence of a parameter regime where the backward Raman scattering is unstable while the forward Raman scattering is stable. This regime may be used to create intense x-ray pulses, by means of the the backward Raman compression. The optimal pulse duration and intensity is estimated.

References in corpus (2)

• Suppression of Landau damping via electron band gap
• Photonic band gap and x-ray optics in warm dense matter

Cited by in corpus (5)

• Two stream instabilities in degenerate quantum plasmas
• Pondermotive potential and Backward Raman Scattering in dense quantum plasmas
• X-ray Raman compression via two-stream instability in dense plasmas
• Forward Raman compression via photonic band gap in metals or warm dense matter
• Enhanced damping of ion acoustic waves in dense plasmas