Ultraviolet photonic crystal laser

作者：Xin Wu, Alexey G. Yamilov, X. Liu, S. Li, Vinayak P. Dravid, R. P. H. Chang, Hui Cao · 发表于：Applied Physics Letters · 年份：2004 · DOI：10.1063/1.1808888 · 被引用次数：147 · 研究领域：Photonic Crystals and Applications、Optical Coatings and Gratings、Photonic and Optical Devices

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.