National Changhua University of Education Institutional Repository : Item 987654321/12524
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题名: Polarization-dependent Optical Characteristics of Violet InGaN Laser Diodes
作者: Yen, Sheng-Horng;Kuo, Yen-Kuang
贡献者: 物理學系
日期: 2008
上传时间: 2012-07-19T01:48:25Z
出版者: American Institute of Physics
摘要: The polarization-dependent optical characteristics of violet InGaN laser diodes, such as band diagrams, emission wavelength, and threshold current, under different operation temperatures have been investigated numerically. Specifically, the normal and reversed polarizations are presented when the laser diodes with wurtzite structure are grown along Ga-face and N-face orientations, respectively. The simulation results show that the lowest threshold current is obtained for the double-quantum-well laser diode with normal polarization, while it is obtained for the single-quantum-well laser diode with reversed polarization. The main physical explanation for the phenomenon is due to effectively reduced electron leakage current, increased hole current density, and reduced Shockley–Read–Hall recombination rate within the active region as the idea of reversed polarization is considered.
關聯: Journal of Applied Physics, 103(10): 103115
显示于类别:[物理學系] 期刊論文

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