Tagged: -Photonic-crystal, bandstructure, subwavelength
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December 6, 2022 at 8:55 am
KongHao Ju
Subscriber老师您好,我最近在学习这个例子https://www.lumerical.com/learn/video/swg-bandstructures/n中的亚波长结构能带、有效折射率等计算,直接运行例子中的SWG_bandstructure.fsp和SWG_analyze_bandstructure.lsf文件可以得到有效的结果,如图
但是,当我改变仿真区大小y span从2um到6um,z span从2.22um到6um(此过程中已改变衬底使其足够大),其他参数不变,仿真后得到的结果与上图并不完全一致,学习了时域信号对频域结果的影响后,我多次修改调试了FDTD simulation time、PML的profile和layers、apodization width和apodization center(::model::apod_center和::model::apod_center)均未得到相同的结果。结果如图所示:
当我仿真其他波长和结构参数的结构时得到了更为奇怪的结果
因此,我想问一下老师FDTD simulation time、PML的profile和layers、apodization width和apodization center等参数对此类仿真结果如何影响,如何调节上述参数可能会得到想要的结果。
谢谢老师
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December 8, 2022 at 8:00 am
KongHao Ju
Subscriber问题已经解决,不必再回复🙏。
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