Determination of the momentum of impulsively generated phonon polaritons

Research output: Contribution to journalArticle


It is proved experimentally that the momentum of phonon polaritons generated by impulsive excitation has to be calculated using the same formula as for the case of long-pulse coherent anti-Stokes Raman scattering experiments. Attention is also drawn to the fact that, contrary to the common belief, the generated phonon polaritons are not exactly counterpropagating.

Original languageEnglish
Pages (from-to)1-3
Number of pages3
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number9
Publication statusPublished - Jan 1 2002

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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