论文标题
基于HGCDTE的量子级联激光器在GAAS Phonon Reststrahlen频段中通过平衡方程方法预测
HgCdTe-based quantum cascade lasers operating in the GaAs phonon Reststrahlen band predicted by the balance equations method
论文作者
论文摘要
理论上使用平衡方程方法研究了基于HGCDTE的基于HGCDTE的量子级联激光器，其目标波长为36 mkm，其目标波长为36 mkm。基于三个和两个量子孔的优化活性区域设计在150 K时表现出峰值增长超过100 cm（-1）。我们分析了峰值增益的温度依赖性，并预测了分别为三孔和两孔设计的170 K和225 k的最高操作温度。在高温（t> 120 K）下，两孔设计的温度性能较高，与弱局部激光波函数的空间重叠以及较高的种群反演有关。
HgCdTe-based quantum cascade lasers operating in the GaAs phonon Reststrahlen band with a target wavelength of 36 mkm are theoretically investigated using the balance equations method. The optimized active region designs, which are based on three and two quantum wells, exhibit a peak gain exceeding 100 cm(-1) at 150 K. We analyze the temperature dependences of the peak gain and predict the maximum operation temperatures of 170 K and 225 K for three- and two-well designs, respectively. At high temperatures (T > 120 K), the better temperature performance of the two-well design is associated with a larger spatial overlap of the weakly localized lasing wavefunctions as well as a higher population inversion.
