Time-resolved Raman studies of the decay of the longitudinal optical phonons in wurtzite GaN

Kong-Thon Tsen, D. K. Ferry, A. Botchkarev, B. Sverdlov, A. Salvador, H. Morkoc

Research output: Contribution to journalArticle

106 Scopus citations

Abstract

Decay of the longitudinal-optical (LO) phonons in wurtzite GaN has been studied by subpicosecond time-resolved Raman spectroscopy. Our experimental results show that among the various possible decay channels, the LO phonons in wurtzite GaN decay primarily into a large wave-vector TO and a large wave-vector LA or TA phonon. These experimental results are consistent with the recent theoretical calculations of the phonon dispersion curves for wurtzite GaN.

Original languageEnglish (US)
Pages (from-to)2132-2134
Number of pages3
JournalApplied Physics Letters
Volume72
Issue number17
DOIs
StatePublished - Dec 1 1998

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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