Room-Temperature Operation of Optically Pumped Blue-Violet GaN-Based Vertical-Cavity Surface-Emitting Lasers Fabricated by Laser Lift-Off

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概要

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• Room-temperature optically pumped GaN-based vertical-cavity surface-emitting lasers (VCSELs) were demonstrated by laser lift-off. A VCSEL was fabricated by combining a GaN-based cavity with two dielectric distributed Bragg reflectors: SiO2/TiO2 and SiO2/Ta2O5. The Q factor of the VCSEL is 518 indicating a good interfacial layer quality of the structure. The laser emits blue-violet wavelength light at 414 nm under optical pumping at room temperature with a threshold pumping energy of 270 nJ. The laser emission has a narrow linewidth of 0.25 nm and a degree of polarization of 70%. The laser emission patterns clearly indicate a vertical lasing action of the VCSEL.

• 2006-04-15

著者

• Kuo Hao-chung

  Department Of Photonic And Institute Of Electro-optical Engineering National Chiao Tung University

• Lu Tien-chang

  Department Of Photonics And Institute Of Electro-optical Engineering National Chiao Tung University

• Yao Hsin-hung

  Department Of Photonics & Institute Of Electro-optical Engineering National Chiao Tung Universit

• KAO Chih-Chiang

  Department of Photonics & Institute of Electro-Optical Engineering, National Chiao Tung University

• LIANG Wen-Deng

  Department of Photonics & Institute of Electro-Optical Engineering, National Chiao Tung University

• Chu Jung-tang

  Department Of Photonics & Institute Of Electro-optical Engineering National Chiao Tung Universit

• Wang Shing-chung

  Department Of Photonic And Institute Of Electro-optical Engineering National Chiao Tung University

• Tsai Jui-Yen

  Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 300, Taiwan

• Liang Wen-Deng

  Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 300, Taiwan

• Kao Chih-Chiang

  Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu 300, Taiwan

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