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Proceedings Paper

ZnO photonic crystal lasers
Author(s): Xiaohua Wu; Alexey Yamilov; Xiang Liu; Shuyou Li; Vinayak P. Dravid; Robert P. H. Chang; Hui Cao
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Paper 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.

Paper Details

Date Published: 2 March 2006
PDF: 9 pages
Proc. SPIE 6122, Zinc Oxide Materials and Devices, 612205 (2 March 2006); doi: 10.1117/12.645454
Show Author Affiliations
Xiaohua Wu, Northwestern Univ. (United States)
Alexey Yamilov, Northwestern Univ. (United States)
Univ. of Missouri, Rolla (United States)
Xiang Liu, Northwestern Univ. (United States)
Shuyou Li, Northwestern Univ. (United States)
Vinayak P. Dravid, Northwestern Univ. (United States)
Robert P. H. Chang, Northwestern Univ. (United States)
Hui Cao, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 6122:
Zinc Oxide Materials and Devices
Ferechteh Hosseini Teherani; Cole W. Litton, Editor(s)

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