Lasing action in gallium nitride photonic quasicrystal nanorod arrays

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

doi:10.1117/12.908308

27 February 2012 Lasing action in gallium nitride photonic quasicrystal nanorod arrays

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

Author Affiliations +

Proceedings Volume 8262, Gallium Nitride Materials and Devices VII; 82620X (2012) https://doi.org/10.1117/12.908308
Event: SPIE OPTO, 2012, San Francisco, California, United States

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.

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Shih-Pang Chang, Kuok-Pan Sou, Jet-Rung Chang, Yuh-Jen Cheng, Yuh-Jing Li, Yi-Chen Chen, Hao-Chung Kuo, Ken-Yuh Hsu, and Chun-Yen Chang "Lasing action in gallium nitride photonic quasicrystal nanorod arrays", Proc. SPIE 8262, Gallium Nitride Materials and Devices VII, 82620X (27 February 2012); https://doi.org/10.1117/12.908308

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