Photonics

Photonics

PN junction in FDTD?

    • udara
      Subscriber

      how to add a new material in FDTD by defining it based on doping concentration to create a silicon pn junction ?

    • Khashayar Ghaffari
      Ansys Employee
      Hi It sounds you are looking for simulating the updates in optical properties due to carrier density values in pn junction. For this you would need to import the carrier density map from CHARGE into FDTD (or MODE) and use an index perturbation material type for your silicon. I recommend looking into the pn phase shifter example to see an example of how this can be implemented in the project file.
      Best regards
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