Ultraviolet photonic crystal laser

  title={Ultraviolet photonic crystal laser},
  author={X. Wu and Alexey Yamilov and X. Liu and S. Li and Vinayak P. Dravid and R. P. H. Chang and Hui Cao},
  journal={Applied Physics Letters},
  • X. WuA. Yamilov H. Cao
  • Published 1 June 2004
  • Physics, Materials Science
  • Applied Physics Letters
We fabricated two-dimensional photonic crystalstructures 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 photonicband structure calculation, we conclude that lasing occurs in the strongly localized defect modes near the edges of photonic band gap. These defect modes originate from the structure… 

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