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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
Corresponding AuthorOng, HC()
2001-08-01
Source PublicationJOURNAL OF APPLIED PHYSICS
ISSN0021-8979
Volume90Issue:3Pages:1663-1665
AbstractThe 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.
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000169868300085
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/112191
Collection中国科学院金属研究所
Corresponding AuthorOng, HC
Affiliation1.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
Recommended Citation
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.
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