Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5425633 | Surface Science | 2007 | 4 Pages |
Abstract
Three-dimensional (3-D) ZnO random-wall nanostructures and one-dimensional (1-D) ZnO nanorods were prepared on silicon substrates by a simple solid-vapour phase thermal sublimation technique. Optical pumped random lasing has been observed in the ZnO random-wall arrays with a threshold intensity of 0.38Â MW/cm2 in the emission wavelength from 380 to 395Â nm. The optical gain was attributed to the closed-loop scattering and light amplification of the ZnO random-wall. The experimental result suggests that the morphology of nanostructure is the key factor to effect random lasing.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
L. Miao, S. Tanemura, Y. Ieda, M. Tanemura, Y. Hayashi, H.Y. Yang, S.P. Lau, B.K. Tay, Y.G. Cao,