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 journalArticlepeer-review

29 Scopus citations

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 languageEnglish
Pages (from-to)5510-5515
Number of pages6
JournalJournal of Materials Chemistry
Volume20
Issue number26
DOIs
StatePublished - 14 Jul 2010
Externally publishedYes

Fingerprint

Dive into the research topics of 'Single-crystalline hexagonal ZnO microtube optical resonators'. Together they form a unique fingerprint.

Cite this