標題: Localized Lasing Mode in GaN Quasi-Periodic Nanopillars at Room Temperature
作者: Wu, Tzeng-Tsong
Chen, Chih-Cheng
Chen, Hao-Wen
Lu, Tien-Chang
Wang, Shing-Chung
Kuo, Cheng-Huang
光電工程學系
Department of Photonics
關鍵字: GaN;mode localization;nanopillar
公開日期: 1-Jul-2013
摘要: In this paper, GaN quasi-periodic nanopillars were fabricated and investigated. The quasi-periodic nanopillars were realized by nanoimprint technique and selective area growth. Localized lasing mode was identified in the GaN quasi-periodic nanopillars. The threshold energy density and lasing wavelength were 40 mJ/cm(2) and 369 nm, respectively. The divergence angle and near-field lasing spot were measured to be 10.5 degrees and 3.6 mu m, respectively. The spontaneous emission coupling factor of localized lasing mode was estimated to be 9.4 x 10(-3). The mode patterns in the real and reciprocal spaces were calculated by the multiple scattering method to confirm the mode localization behavior.
URI: http://dx.doi.org/10.1109/JSTQE.2013.2247570
http://hdl.handle.net/11536/22605
ISSN: 1077-260X
DOI: 10.1109/JSTQE.2013.2247570
期刊: IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
Volume: 19
Issue: 4
結束頁: 
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