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January 8, 2023 at 5:28 am
594
Subscriber老师您好!
我想请问在FDTD中光功率如何设置,公式是什么,如果我想要设置光功率为300mw,应该如何设置光源?需要修改那些参数。
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January 9, 2023 at 6:04 pm
Guilin Sun
Ansys Employee什么光源?是非线性仿真吗?如果不是非线性,完全没有任何必要设置功率。
如果是非线性,你需要将功率换算为电场振幅。至于怎么换算,与光源类型有关。平面波简单,因为功率正比于电场平方;如果是模式光源,你可以先计算正常模式,简单运行后用Source power提取功率,然后将振幅正比与这个功率比的开平方。你琢磨一下。
参见
Ansys Insight: FDTD 初学者: transmission函数的使用、透射率反射率正负号问题
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February 6, 2023 at 9:34 am
Da cheng Mo
Subscriber我也遇到一樣的問題想參考這個連結,但老師給的連結似乎連結到其他地方了!
不知道有沒有新的連結可以參考!!
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February 6, 2023 at 7:14 pm
Guilin Sun
Ansys Employee已经修改为正确链接了,请参考。
一般来说是不需要指定光源功率的,除非是个别非常特殊的非线性光学仿真,但是也可以通过功率与光源电场的关系,改变电场振幅就可以。
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