Undamping of acoustic plasmons in nonequilibrium plasmas

K. El Sayed, R. Binder, D. C. Scott, S. W. Koch

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Intraband pair excitation and plasmon spectra of nonequilibrium plasmas are analyzed using the dynamic dielectric function in the random-phase approximation. Nonequilibrium conditions are identified for which the Landau damping of acoustic plasmons vanishes. This acoustic-plasmon undamping is discussed for two-component plasmas and for one-component plasmas with a double-peaked distribution in momentum space.

Original languageEnglish (US)
Pages (from-to)10210-10216
Number of pages7
JournalPhysical Review B
Issue number16
StatePublished - 1993

ASJC Scopus subject areas

  • Condensed Matter Physics


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