Dear Subscriber,
By default, the DFT Monitor uses the source spectral limits. However, you can modify this as follows:
- Navigate to Monitor Settings.
- Under the General tab, check override global monitor settings.
- Uncheck use source limits and set your desired range of interest.
Please note, that due to the nature of FDTD algorithm the finite duration/bandwidth of the source is always used. See Can we use a dipole source with a single frequency?
Additionally, refer to the article Frequency-domain Profile and Power Monitor – Simulation Object – Ansys Optics for more information.
Best regards,
Kirill
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