CHI-KUANG SUN2018-09-102018-09-102004http://www.scopus.com/inward/record.url?eid=2-s2.0-33645230627&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/309126Comparison of forward- and backward-propagated second harmonic generation images in lateral overgrown GaNconference paper