CHI-KUANG SUN2018-09-102018-09-102007http://www.scopus.com/inward/record.url?eid=2-s2.0-34848904156&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/331938Narrow-band detection of propagating coherent acoustic phonons in piezoelectric InGaNGaN multiple-quantum wellsjournal article10.1063/1.2785126