中红外量子级联激光器输运特性的仿真

摘要

基于一种非局域化的输运模型,对不同结构不同温度下的中红外量子级联激光器的输运特性进行了仿真.在这个模型中,利用量子隧穿、微带隧穿以及热载流子输运等长程载流子输运模型,对传统的扩散-漂移方程进行了矫正.并将基于上述集成模型的计算结果和实验结果进行了比较,通过拟合参数的合理设置,计算结果和实验结果得到了很好的吻合.%Simulation of transport properties in mid-infrared quantum cascade lasers (QCLs) with different structures at different temperatures bas.ed on non-local transport model is reported.With this model,drift-diffusion equations were solved with modification of current density by accounting for long-range carrier transport including quantum tunneling,mini-band tunneling and hot carrier transport in the device.The simulation with the above model was compared with experimental data and reasonable agreements with experiments have been obtained with some reasonable fitting parameters.