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Random laser action in ZnO nanorod arrays embedded in ZnO epilayers

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Yu, S. F., Yuen, Clement, Lau, S. P., Park, W. I., Yi, Gyu-Chul·2004·Applied Physics Letters

Abstract

Random laser action with coherent feedback has been observed in ZnO nanorod arrays embedded in ZnO epilayers. The sample was fabricated by depositing a MgO buffer layer and followed by a layer of ZnO thin film onto a vertically well-aligned ZnO nanorod arrays grown on sapphire substrate. Under 355 nm optical excitation at room temperature, sharp lasing peaks emit at around 390 nm with a linewidth less than 0.4 nm has been observed in all directions. In addition, the dependence of the lasing threshold intensity on the excitation area is shown in good agreement with the random laser theory. Hence, it is demonstrated that random laser action can also be supported in ZnO nanorod arrays.

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Metadata

Authors
Yu, S. F., Yuen, C., Lau, S. P., Park, W. I., & Yi, G.-C.
Venue
Applied Physics Letters
Published
2004-04-26
Volume
84
Issue
17
Pages
3241-3243
ISSN
  • 0003-6951 (ISSN-L)
  • 1077-3118
OpenAlex
W2018333745
Cited by
223
References
0
FWCI
8.00
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Random laser action in ZnO nanorod arrays embedded in ZnO epilayers. https://app.cochat.ai/papers/10.1063/1.1734681
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Yu, S. F., Yuen, C., Lau, S. P., Park, W. I., & Yi, G.-C. (2004). Random laser action in ZnO nanorod arrays embedded in ZnO epilayers. Applied Physics Letters. https://doi.org/10.1063/1.1734681

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