"M. Kawasaki,A. Ohtomo,H. Koinuma,Y. Sakurai,Y. Yoshida,Z. K. Tang,P. Yu,G. K. L. Wong,Y. Segawa","Ultraviolet excitonic laser action at room temperature in ZnO nanocrystalline epitaxial films",,"Silicon Carbide, Iii-Nitrides and Related Materials, Pts 1 and 2","Trans Tech Publications","Vol. 264-2",,"pp. 1459-1462",1998,Dec.
"P. Yu,Z. K. Tang,G. K. L. Wong,M. Kawasaki,A. Ohtomo,H. Koinuma,Y. Segawa","Excitonic gain and laser emission in ZnO microcrystallites at room temperature",,"Physics of Low-Dimensional Structures",,"Vol. 1-2",,"pp. 243-251",1998,Dec.
"M. Kawasaki,A. Ohtomo,I. Ohkubo,H. Koinuma,Z. K. Tang,P. Yu,G. K. L. Wong,B. P. Zhang,Y. Segawa","Excitonic ultraviolet laser emission at room temperature from naturally made cavity in ZnO nanocrystal thin films",,"Materials Science and Engineering B-Solid State Materials for Advanced Technology",,"Vol. 56","No. 2-3","pp. 239-245",1998,Nov.
"Z. K. Tang,G. K. L. Wong,P. Yu,M. Kawasaki,A. Ohtomo,H. Koinuma,Y. Segawa","Room-temperature ultraviolet laser emission from self-assembled ZnO microcrystallite thin films",,"Applied Physics Letters",,"Vol. 72","No. 25","pp. 3270-3272",1998,June
"A. Ohtomo,M. Kawasaki,Y. Sakurai,Y. Yoshida,H. Koinuma,P. Yu,Z. K. Tang,G. K. L. Wong,Y. Segawa","Room temperature ultraviolet laser emission from ZnO nanocrystal thin films grown by laser MBE",,"Materials Science and Engineering B-Solid State Materials for Advanced Technology",,"Vol. 54","No. 1-2","pp. 24-28",1998,June
"P. Yu,Z. K. Tang,G. K. L. Wong,M. Kawasaki,A. Ohtomo,H. Koinuma,Y. Segawa","Room-temperature gain spectra and lasing in microcrystalline ZnO thin films",,"Journal of Crystal Growth",,"Vol. 184",,"pp. 601-604",1998,Feb.
"P. Yu,Z. K. Tang,G. K. L. Wong,M. Kawasaki,A. Ohtomo,H. Koinuma,Y. Segawa","Ultraviolet spontaneous and stimulated emissions from ZnO microcrystallite thin films at room temperature",,"Solid State Communications",,"Vol. 103","No. 8","pp. 459-463",1997,Aug.
"Y. Segawa,A. Ohtomo,M. Kawasaki,H. Koinuma,Z. K. Tang,P. Yu,G. K. L. Wong","Growth of ZnO thin film by laser MBE: Lasing of exciton at room temperature",,"Physica Status Solidi B-Basic Research",,"Vol. 202","No. 2","pp. 669-672",1997,Aug.
"‘å—F –¾,�ì�è ‰ëŽi,Œï�À �G�b,“’ Žq�N,Yu Ping,Wong Goerge K. L.,�£�ì —EŽO˜N","ZnO‚Ì—ÊŽq�\‘¢‚ÌŒ`�¬‚ÆŽº‰·ƒŒ�[ƒU�[”­�U",,"–¢—ˆŠJ‘ñŒ¤‹†ƒjƒ…�[ƒXƒŒƒ^�[",,"Vol. 2",,"  38-39",1997,Jan.
"�ì�è ‰ëŽi,‘å—F –¾,Œï�À �G�b,“’ Žq�N,Yu Ping,Wong Goerge K. L.,�£�ì —EŽO˜N","ZnOƒGƒLƒVƒgƒ“ƒŒ�[ƒU�[",,"‘æ25‰ñ‰ž•¨”––Œ�E•\–ʃZƒ~ƒi�[",,,,"p. 39-44",1997,Jan.
"�ì�è ‰ëŽi,‘å—F –¾,Œï�À �G�b,“’ Žq�N,P. Yu,G. K. L. Wong,�£�ì —EŽO˜N","ZnO‚Ì—ÊŽq�\‘¢‚ÌŒ`�¬‚ÆŽº‰·ƒŒ�[ƒU�[”­�U",,"“ú–{Šw�p�U‹»‰ï‘æ162ˆÏˆõ‰ï ‘æ6‰ñŒ¤‹†‰ïŽ‘—¿",,,,"p. 54-59",1997,Jan.