TITLE

Fabry–Pérot and whispering gallery modes enhanced luminescence from an individual hexagonal ZnO nanocolumn

AUTHOR(S)
Wang, N. W.; Yang, Y. H.; Yang, G. W.
PUB. DATE
July 2010
SOURCE
Applied Physics Letters;7/26/2010, Vol. 97 Issue 4, p041917
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Strongly enhanced luminescence was observed from an individual hexagonal ZnO nanocolumn using the monochromatic cathodeluminescence equipment attached at a scanning electron microscopy. The intense luminescence emissions are focused on two regions, i.e., the profile and the center of the nanocolumn, respectively. The luminescence from the center region is attributed to the Fabry–Pérot (FP) mode enhanced emission, and the one from the hexagonal profile is attributed to the whispering gallery (WG) mode enhanced emission when the individual ZnO nanocolumn is regarded as an optical resonator. The FP enhanced emission is much stronger than the WG enhanced one.
ACCESSION #
52616415

 

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