Metal-oxide-SiO2composite ZnO lasers

Eunice S.P. Leong, Siu Fung Yu, M. K. Chong, O. K. Tan, K. Pita

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)


The use of metal-oxide-SiO2composite to sustain random lasing in ZnO thin films is proposed. It is shown that the presence of stripe pattern in the metal-oxide-SiO2composite is necessary to minimize lasing threshold and achieve directional emission. By controlling the concentration of the metal-oxide and stripe spacing, coherent lasing threshold and linewidth of ∼85 kW/cm2and ∼0.4 nm, respectively, can be obtained from mirrorless ZnO thin-film waveguide lasers.
Original languageEnglish
Pages (from-to)1815-1817
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number9
Publication statusPublished - 1 Sept 2005
Externally publishedYes


  • Nanocomposite
  • Random lasing
  • Sol-gel waveguide
  • Zinc oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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