Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1539015 | Optics Communications | 2010 | 5 Pages |
Abstract
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.
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Materials Science
Electronic, Optical and Magnetic Materials
Authors
Yen-Kuang Kuo, Syuan-Huei Horng, Miao-Chan Tsai, Sheng-Horng Yen, Shu-Hsuan Chang,