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August 19, 2023 at 11:54 am
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August 21, 2023 at 8:48 pm
Guilin Sun
Ansys Employee不知道啊,其它信息都没有,就两幅图。你好好看看这个文章吧,看看里面怎么说。
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August 24, 2023 at 1:13 pm
pengliang lei
Subscriber论文中就是给了一个θ=arg(tr)。tr是透射系数,论文中提到有T=|tr|^2,但是我找了很久FDTD的仿真只有T而没有tr。其中的group index则是慢光器件的群折射率,phase shift则是透射相移。 -
August 24, 2023 at 3:26 pm
Guilin Sun
Ansys Employeetr是振幅透射系数,基本上就是场分量 (需要做折射率修正,参考菲涅尔系数章节了解其物理原理)。
如果你只想找到位相,可以参考 超透镜例子或者超材料例子:
https://optics.ansys.com/hc/en-us/articles/360042097313-Small-Scale-Metalens-Field-Propagation
https://optics.ansys.com/hc/en-us/articles/360042097393-Metamaterial-parameter-extraction-Smith
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August 24, 2023 at 3:29 pm
pengliang lei
Subscriber好的,谢谢了
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