Effect of a microstructure on the formation of self-assembled laser cavities in polycrystalline ZnO

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	Effect of a microstructure on the formation of self-assembled laser cavities in polycrystalline ZnO
	Ong, HC ; Dai, JY ; Li, ASK ; Du, GT ; Chang, RPH ; Ho, ST
通讯作者	Ong, HC()
	2001-08-01
发表期刊	JOURNAL OF APPLIED PHYSICS
ISSN	0021-8979
卷号	90 期号:3 页码:1663-1665
摘要	The optical properties of polycrystalline ZnO have been studied to elucidate the occurrence of random laser action. The spatially-resolved refractive index has been mapped out by using the scanning electron energy loss spectroscopy across the grain boundary. It is observed that the refractive index decreases gradually when the probe beam is approaching to the grain boundary. A thin reflective layer of similar to 10 nm is found to form in the vicinity of the grain boundary, which assists the optical scattering. The photon scattering factor of the reflective layer has been determined and is shown to correlate well with the results of the coherent backscattering method. Together with the cathodoluminescence studies, it is suggested that the overall structure, which includes the grain and grain boundary, determines the laser action in ZnO. (C) 2001 American Institute of Physics.
收录类别	SCI
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000169868300085
出版者	AMER INST PHYSICS
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/112191
专题	中国科学院金属研究所
通讯作者	Ong, HC
作者单位	1.City Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Met Res Inst, Beijing, Peoples R China 3.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong 4.Jilin Univ, State Key Lab Integrated Optoelect, Changchun, Peoples R China 5.Northwestern Univ, Dept Elect & Comp Engn, Evanston, IL 60208 USA
推荐引用方式 GB/T 7714	Ong, HC,Dai, JY,Li, ASK,et al. Effect of a microstructure on the formation of self-assembled laser cavities in polycrystalline ZnO[J]. JOURNAL OF APPLIED PHYSICS,2001,90(3):1663-1665.
APA	Ong, HC,Dai, JY,Li, ASK,Du, GT,Chang, RPH,&Ho, ST.(2001).Effect of a microstructure on the formation of self-assembled laser cavities in polycrystalline ZnO.JOURNAL OF APPLIED PHYSICS,90(3),1663-1665.
MLA	Ong, HC,et al."Effect of a microstructure on the formation of self-assembled laser cavities in polycrystalline ZnO".JOURNAL OF APPLIED PHYSICS 90.3(2001):1663-1665.