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Proceedings Paper

Lasing action in gallium nitride photonic quasicrystal nanorod arrays
Author(s): Shih-Pang Chang; Kuok-Pan Sou; Jet-Rung Chang; Yuh-Jen Cheng; Yuh-Jing Li; Yi-Chen Chen; Hao-Chung Kuo; Ken-Yuh Hsu; Chun-Yen Chang
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Paper Abstract

We report the observation of lasing action from optically pumped gallium nitride nanorod arrays in a quasicrystal pattern. The nanorods were fabricated from a GaN substrate by nanoimprint patterned etching, followed by epitaxial regrowth to form crystalline facets. The imprint was a 12-fold symmetric quasicrystal pattern. The regrowth grew a multiple quantum well core-shell structure on nanorods. The cathodoluminescent emission of quantum wells red shifts from the bottom to top region of nanorod. Under optical pumping, multiple lasing peaks were observed. The lasing modes formed by 12-fold symmetric photonic quasicrystal nanorod arrays are discussed.

Paper Details

Date Published: 27 February 2012
PDF: 6 pages
Proc. SPIE 8262, Gallium Nitride Materials and Devices VII, 82620X (27 February 2012); doi: 10.1117/12.908308
Show Author Affiliations
Shih-Pang Chang, National Chiao Tung Univ. (Taiwan)
Kuok-Pan Sou, National Chiao Tung Univ. (Taiwan)
Jet-Rung Chang, National Chiao Tung Univ. (Taiwan)
Yuh-Jen Cheng, National Chiao Tung Univ. (Taiwan)
Academia Sinica (Taiwan)
Yuh-Jing Li, National Chiao Tung Univ. (Taiwan)
Yi-Chen Chen, National Chiao Tung Univ. (Taiwan)
Hao-Chung Kuo, National Chiao Tung Univ. (Taiwan)
Ken-Yuh Hsu, National Chiao Tung Univ. (Taiwan)
Chun-Yen Chang, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 8262:
Gallium Nitride Materials and Devices VII
Jen-Inn Chyi; Yasushi Nanishi; Hadis Morkoç; Joachim Piprek; Euijoon Yoon, Editor(s)

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