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September 5, 2022 at 8:27 am
2020100172
Subscriber老师您好,有两个问题想请教:
(1)在FDTD仿真中,如何设置使光源变为线偏振光、左旋圆偏振光、或者右旋圆偏振光呢?
(2)我看到有的文献里将聚焦效率定义为焦平面的能量与入射光的能量之比,想知道如何设置能得到能量的数值呢?
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September 6, 2022 at 5:07 pm
Guilin Sun
Ansys Employee平面波光源本身就是线偏振,沿XYZ,看箭头即可。
如果不是沿轴,可以改偏振角。
圆偏振参见
很多人忘记能量和功率的不同,实际上应该是功率之比,参见
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September 8, 2022 at 1:14 pm
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September 8, 2022 at 3:52 pm
Guilin Sun
Ansys EmployeeA1:圆偏振光就是两个偏振正交(偏振角0和90度),位相差90度(0,90或者-90度)的相同位置相同方向的线偏光合成,你的设置应该没啥错误,至于左旋还是右旋,则需要自己定义,因为不同教科书有不同的定义。
A2: 对的 。
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September 9, 2022 at 4:04 am
2020100172
Subscriber好的,我明白了,谢谢老师!
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