Issue 26, 2010
From the journal:

Journal of Materials Chemistry

Single-crystalline hexagonal ZnO microtube optical resonators†

Hongxing Dong,a   Zhanghai Chen,*a   Liaoxin Sun,a   Wei Xie,a   H. Hoe Tan,b   Jian Lu,a   Chennupati Jagadishb  and  Xuechu Shena  

* Corresponding authors

a Surface Physics Laboratory, Department of Physics, Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
E-mail: zhanghai@fudan.edu.cn

b Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra, Australia

Abstract

High quality ZnO microtubes with hexagonal cross sections, fabricated via an oxidation–sublimation 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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Article information

DOI
https://doi.org/10.1039/C0JM00172D
Article type
Paper
Submitted
27 Jan 2010
Accepted
13 Apr 2010
First published
02 Jun 2010

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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