Density matrix Monte Carlo modeling of quantum cascade lasers
Density matrix Monte Carlo modeling of quantum cascade lasers
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DOI：
10.1063/1.5005618
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发表时间：
2017-10-07
影响因子：
3.2
通讯作者：
Jirauschek, Christian
中科院分区：
文献类型：
--
作者：
Jirauschek, Christian
通过包含密度矩阵形式的元素，载流子输运的半经典系综蒙特卡罗方法被扩展到包含非相干隧道，已知在量子级联激光器（qcl）中起重要作用。特别是，这种效应支配着电子在厚注入屏障上的传输，这在太赫兹QCL设计中经常使用。实现了量子力学脱相的自洽模型，消除了对经验模拟参数的需要。我们的建模方法针对不同类型的太赫兹QCL设计进行了实验数据验证。AIP出版社出版。
By including elements of the density matrix formalism, the semiclassical ensemble Monte Carlo method for carrier transport is extended to incorporate incoherent tunneling, known to play an important role in quantum cascade lasers (QCLs). In particular, this effect dominates electron transport across thick injection barriers, which are frequently used in terahertz QCL designs. A self-consistent model for quantum mechanical dephasing is implemented, eliminating the need for empirical simulation parameters. Our modeling approach is validated against available experimental data for different types of terahertz QCL designs. Published by AIP Publishing.