@article{479c2ba0717b42839d3312bc2474c3a2,
title = "Coherent longitudinal optical phonon and plasmon coupling in the near-surface region of InN",
abstract = "Coherent phonon spectroscopy of a high-quality InN epitaxial layer is carried out using time-resolved second-harmonic generation. A coherent longitudinal optical phonon and plasmon coupling mode only at 447 cm -1 can be resolved in the spectrum. Its frequency shows no dependence on the photoinjected carrier density up to 1.5 × 10 19 cm -3. This phenomenon is attributed to the hybridization of a coherent A 1(LO) phonon with the intrinsic cold plasma accumulated in the near-surface region of InN, where the plasma density could reach on the order of 10 20 cm -3, much higher than the bulk carrier concentration 1 × 10 18 cm -3 determined by Hall effect measurement.",
author = "Chang, {Y. M.} and Chuang, {C. T.} and Chia, {C. T.} and Tsen, {K. T.} and H. Lu and Schaff, {W. J.}",
note = "Funding Information: One of the authors (Y.-M.C.) acknowledges the financial support of the National Science Council and Academia Sinica of Taiwan. The work at ASU is supported by the National Science Foundation under Grant No. DMR-0305147. The work at Cornell University is supported by ONR Contract No. N000149910936 monitored by Dr. Colin Wood and a LBNL Subcontract No. 6703635. They also wish to acknowledge the technical assistance of Mark Little and Troy Richardson.",
year = "2004",
month = nov,
day = "29",
doi = "10.1063/1.1830077",
language = "English",
volume = "85",
pages = "5224--5226",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "22",
}