標題: Lasing action in gallium nitride quasicrystal nanorod arrays
作者: Chang, Shih-Pang
Sou, Kuok-Pan
Chen, Chieh-Han
Cheng, Yuh-Jen
Huang, Ji-Kai
Lin, Chung-Hsiang
Kuo, Hao-Chung
Chang, Chun-Yen
Hsieh, Wen-Feng
電子工程學系及電子研究所
光電工程學系
Department of Electronics Engineering and Institute of Electronics
Department of Photonics
公開日期: 21-May-2012
摘要: We report the observation of lasing action from an optically pumped gallium nitride quasicrystal nanorod arrays. The nanorods were fabricated from a GaN substrate by patterned etching, followed by epitaxial regrowth. The nanorods were arranged in a 12-fold symmetric quasicrystal pattern. The regrowth grew hexagonal crystalline facets and core-shell multiple quantum wells (MQWs) on nanorods. Under optical pumping, multiple lasing peaks resembling random lasing were observed. The lasing was identified to be from the emission of MQWs on the nanorod sidewalls. The resonant spectrum and mode field of the 12-fold symmetric photonic quasicrystal nanorod arrays is discussed. (C) 2012 Optical Society of America
URI: http://hdl.handle.net/11536/16301
ISSN: 1094-4087
期刊: OPTICS EXPRESS
Volume: 20
Issue: 11
結束頁: 12457
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