ZnO photonic crystal lasers

Xiaohua Wu*, Alexey Yamilov, Xiang Liu, Shuyou Li, Vinayak P. Dravid, Robert P.H. Chang, Hui Cao

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We fabricated two dimensional photonic crystal structures in zinc oxide films with focused ion beam etching. Lasing is realized in the near ultraviolet frequency at room temperature under optical pumping. From the measurement of lasing frequency and spatial profile of the lasing modes, as well as the photonic band structure calculation, we conclude that lasing occurs in either localized or extended defect modes near the dielectric edge of photonic band gap. These defect modes originate from the structure disorder unintentionally introduced during the fabrication process. Fine tuning of lasing wavelength across 20nm range has been realized by varying the lattice constant of PhCS structure. A qualitative explanation for these PhCS lasers with self optimization of laser cavity quality factor has been proposed.

Original languageEnglish (US)
Title of host publicationZinc Oxide Materials and Devices
DOIs
StatePublished - 2006
EventZinc Oxide Materials and Devices - San Jose, CA, United States
Duration: Jan 22 2006Jan 25 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6122
ISSN (Print)0277-786X

Other

OtherZinc Oxide Materials and Devices
CountryUnited States
CitySan Jose, CA
Period1/22/061/25/06

Keywords

  • Defect mode
  • Laser
  • PhCS
  • Self optimization
  • ZnO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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