@inproceedings{03842f7d5b3e417da8546d2f587c0c7e,
title = "Dynamics of LO phonons in InN studied by subpicosecond time-resolved Raman spectroscopy",
abstract = "The phonon dynamics of both the A1 (LO) and the E1 (LO) phonons in InN has been studied by time-resolved Raman spectroscopy on a subpicosecond time scale. From the temperature-dependence of their lifetimes, we demonstrate that both phonons decay primarily into a large wavevector TO phonon and a large wavevector TA/LA phonon consistent with the accepted phonon dispersion relationship for wurtzite InN. Their lifetimes have been found to decrease from 2.2 ps, at the low electron-hole pair density of5×10 17 cm-3 to 0.25 ps, at the highest density of 2×1019 cm-3. Our experimental findings demonstrate that carrier-density dependence of LO phonon lifetime is a universal phenomenon in polar semiconductors.",
keywords = "InN, LO phonon lifetimes, Time-resolved Raman spectroscopy",
author = "Kong-Thon Tsen",
year = "2010",
language = "English (US)",
isbn = "9781617822087",
series = "Materials Research Society Symposium Proceedings",
pages = "7--20",
booktitle = "Phonon Engineering for Enhanced Materials Solutions - Theory and Applications",
note = "2009 MRS Fall Meeting ; Conference date: 30-11-2009 Through 02-12-2009",
}