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March 5, 2024 at 7:28 pm
Chuan Zhong
SubscriberDear Staff Member at Ansys Lumerical FDTD,
Can anyone help to change the size of a Plane Wave Source, I found it width of the source is always 2 times of my simulation domain. Just wonder if this number is set by default? How can I make a Plane Wave Source is smaller than a simulation size, thank you.
Best wishes
Chuan
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March 6, 2024 at 5:40 pm
Amrita Pati
Ansys EmployeeHi Chuan,
The "Bloch/periodic" type of plane wave is used to represent a pure plane wave, as a result the solver has been designed to extend it through the entire simulation span.
If you want to use a plane-wave of finite-size, you can use the "Diffracting" Type plane wave. The diffracting type plane wave is equivalent to plane waves passing through a rectangular aperture with the same size as the source span. It can also be used with PML boundaries but it will diffract.
Regards,
Amrita -
March 6, 2024 at 7:05 pm
Chuan Zhong
SubscriberHi Amrita,
It helps, thank you so much.
Best wishes
Chuan
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- The topic ‘How to change the size a Plane Wave Source’ is closed to new replies.
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