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Photonics

Photonics

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  3. TFSF excitation with angle diverge

TFSF excitation with angle diverge

    • July 18, 2024 at 11:44 am
      a.a.al-hamadani-2020
      Subscriber

      Hi Dear,

      I have run simulation to study the scattering from metaparticle using TFSF with propagation angle 60 in TE and TM mode, the TE mode works fine but when I run the TM mode it diverges. so could you please help me modify my input file.

      Best 

      Areeg

    • July 19, 2024 at 6:53 pm
      Amrita Pati
      Ansys Employee

      Hi Areej,

      The first step in any divergence issue is to identify if it is due to the PML boundaries or if it is a stability issue. I will recommend you to visit this page: Troubleshooting diverging simulations in FDTD. You can change all the PML boundaries to Metal boundaries and let me know if the simulation converges or not.

      Regards,
      Amrita

    • July 22, 2024 at 8:20 am
      a.a.al-hamadani-2020
      Subscriber

      Hi Amrita,

      thank you so much for your advice, I will try that and see what I will get, I wantted to add that I run it for a range of wavelength and each file with single wavelength it works fine from 455 to 615 and start t diverge after that. any way I will try what you recomended and see.

       

      Best 

      Areeg

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