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题名: Effect of Normal and Reversed Polarizations on Optical Characteristics of Ultraviolet-violet InGaN Laser Diodes
作者: Kuo, Yen-Kuang;Horng, Syuan-Huei;Tsai, Miao-Chan;Yen, Sheng-Horng;Chang, Shu-Hsuan
贡献者: 物理學系
关键词: Semiconductor lasers;Piezoelectric devices;Numerical simulation
日期: 2010-10
上传时间: 2012-07-19T01:49:07Z
出版者: Elsevier
摘要: The optical characteristics of ultraviolet-violet InGaN laser diodes with different numbers of quantum wells under normal and reversed polarizations are numerically investigated. For the laser structures under normal polarization, the lowest threshold current is obtained when the number of quantum wells is two in the spectral range of 380–408 nm. For the laser structures under reversed polarization, the single quantum-well laser structure possesses the lowest threshold current. The simulation results suggest that the physical origin for these phenomena is caused by the sufficiently suppressed electron and hole leakage currents when the laser diode is under reversed polarization.
關聯: Optics Communications, 283(19): 3698-3702
显示于类别:[物理學系] 期刊論文

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