Single-crystalline hexagonal ZnO microtube optical resonators

Hongxing Dong; Zhanghai Chen; Liaoxin Sun; Wei Xie; H. Hoe Tan; Jian Lu; Chennupati Jagadish; Xuechu Shen

doi:10.1039/c0jm00172d

Single-crystalline hexagonal ZnO microtube optical resonators

Hongxing Dong, Zhanghai Chen^*, Liaoxin Sun, Wei Xie, H. Hoe Tan, Jian Lu, Chennupati Jagadish, Xuechu Shen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

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.

Original language	English
Pages (from-to)	5510-5515
Number of pages	6
Journal	Journal of Materials Chemistry
Volume	20
Issue number	26
DOIs	https://doi.org/10.1039/c0jm00172d
Publication status	Published - 14 Jul 2010

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AU - Dong, Hongxing

AU - Chen, Zhanghai

AU - Sun, Liaoxin

AU - Xie, Wei

AU - Tan, H. Hoe

AU - Lu, Jian

AU - Jagadish, Chennupati

AU - Shen, Xuechu

PY - 2010/7/14

Y1 - 2010/7/14

N2 - 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.

AB - 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.

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Single-crystalline hexagonal ZnO microtube optical resonators

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