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November 4, 2024 at 8:08 am2202283154Subscriber
在FDTD自内置的光源中我们只能设置频率(波长)的实部,研究实频下的现象,是否可以在FDTD里导入一个复数频率的光源?
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November 4, 2024 at 7:04 pmGuilin SunAnsys Employee
你说的复频率是指信号会随时间衰减吗?光源里不可以设置复数频率,监视器里也不能。
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November 5, 2024 at 8:58 am
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November 5, 2024 at 5:22 pmGuilin SunAnsys Employee
FDTD一般都使用调制的高斯波,Lumerical对调制做了修改是Chirped信号,优点很多。
你可以自己设置一种信号,参见: https://optics.ansys.com/hc/en-us/articles/360034383114-Creating-a-custom-source-time-signal-for-an-FDTD-source
你可能需要琢磨一下到底需要什么样的时间信号。
参考: https://optics.ansys.com/hc/en-us/articles/360034394234-Understanding-frequency-domain-CW-normalization
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