论文标题
在广义的Maxwell-Bloch框架内减少PML吸收边界条件的反射误差
Reducing the reflection error of PML absorbing boundary conditions within a generalized Maxwell-Bloch framework
论文作者
论文摘要
我们演示了一个全波数值Maxwell-Bloch模拟工具，其中包括完美匹配的层（PML）吸收边界条件。为了避免在模拟域的边界处的有害反射误差，引入了改编的PML模型，该模型考虑了内部量子系统引起的阻抗不匹配效应。对于修饰PML模型的数值验证，将模拟工具应用于Terahertz量子级联激光（QCL）结构的活动增益介质。在我们的Maxwell-Bloch模拟方法中，可以改善积极增益介质截断的吸收特性。
We demonstrate a full-wave numerical Maxwell-Bloch simulation tool including perfectly matched layer (PML) absorbing boundary conditions. To avoid detrimental reflection errors at the boundary of the simulation domain, an adapted PML model is introduced, which takes into account impedance mismatch effects arising from the internal quantum system. For the numerical validation of the modified PML model the simulation tool is applied to the active gain medium of a terahertz quantum cascade laser (QCL) structure. Improved absorbing characteristics for the truncation of active gain media in our Maxwell-Bloch simulation approach are obtained.
