Ultraviolet Photonic Crystal Laser

Alexey Yamilov, Missouri University of Science and Technology
Hui Cao
Robert P. H. Chang
Xiaohua Wu
Xang Liu
Shuyou Li
Vinayak P. Dravid

This document has been relocated to http://scholarsmine.mst.edu/phys_facwork/415

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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 the strongly localized defect modes near the edges of photonic band gap. These defect modes originate from the structure disorder unintentionally introduced during the fabrication process. ©2004 American Institute of Physics