Chang, Y.-M.Y.-M.ChangChu, H.W.H.W.ChuShen, C.-H.C.-H.ShenGwo, S.S.Gwo2020-06-112020-06-11200700036951https://scholars.lib.ntu.edu.tw/handle/123456789/501557Identification of surface optical phonon in wurtzite InN epitaxial thin films by coherent phonon spectroscopyjournal article10.1063/1.2679358