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Issue 26, 2010
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Single-crystalline hexagonal ZnO microtube optical resonators

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High quality ZnO microtubes with hexagonal cross sections, fabricated via an oxidationsublimation process, are studied as novel optical resonators. Whispering gallery modes, Fabry-Pérot modes, and an additional set of modes with different polarizations are directly observed in the visible spectral range at room temperature by using the spatially resolved spectroscopic technique. The diameter and wall thickness of the microtube are crucial for light modulation. The experimental results are explained and fitted with a plane wave interference model and Cauchy dispersion formula for refractive indices.

Graphical abstract: Single-crystalline hexagonal ZnO microtube optical resonators

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The article was received on 27 Jan 2010, accepted on 13 Apr 2010 and first published on 02 Jun 2010

Article type: Paper
DOI: 10.1039/C0JM00172D
Citation: J. Mater. Chem., 2010,20, 5510-5515
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    Single-crystalline hexagonal ZnO microtube optical resonators

    H. Dong, Z. Chen, L. Sun, W. Xie, H. H. Tan, J. Lu, C. Jagadish and X. Shen, J. Mater. Chem., 2010, 20, 5510
    DOI: 10.1039/C0JM00172D

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