陈贵楚. AlGaN/GaN量子级联激光器结构的垒层Al组分分析[J]. 华南师范大学学报(自然科学版), 2009, 1(3): 43-46 .
引用本文: 陈贵楚. AlGaN/GaN量子级联激光器结构的垒层Al组分分析[J]. 华南师范大学学报(自然科学版), 2009, 1(3): 43-46 .
CHEN gui-chu. The Study of Al Composition in GaN-based Quantum Cascade Laser[J]. Journal of South China Normal University (Natural Science Edition), 2009, 1(3): 43-46 .
Citation: CHEN gui-chu. The Study of Al Composition in GaN-based Quantum Cascade Laser[J]. Journal of South China Normal University (Natural Science Edition), 2009, 1(3): 43-46 .

AlGaN/GaN量子级联激光器结构的垒层Al组分分析

The Study of Al Composition in GaN-based Quantum Cascade Laser

  • 摘要: 基于不同的研究者报道的AlGaN/GaN三阱式量子级联激光器的垒层有不同的Al组分,通过对激光器一个周期单元的一维薛定谔方程与泊松方程进行自洽求解,得到了能带与电子波函数的分布情况,并且计算了在近共振条件下偶极跃迁矩阵元与垒层Al组分的关系,得到了Al组分的优化结果.

     

    Abstract: In order to optimize the Al composition of the barrier in GaN-based quantum cascade laser, a self-consistent calculation to the schrodinger and poisson equations of one periods in QCL has been done. The band structure and the electron envelope function are obtained. The relation between dipole matrix mement and Al composition of the barrier is illuminated . The results show that the dipole matrix mement is largest with the optimized Al composition to be 0.15.

     

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