Photonics

Photonics

FDTD wavelength and corresponding frequency range ?

    • Mariah Ha
      Subscriber

      Hello, 

      I would like to calculate the capacitance of a device in CHARGE. I found an example where a capacitance is calculated over a range of frequencies. In my case, I am studiying a single wavelength 0.85 microns. Does that mean that the capacitance will be calculated for a single frequency only? 

       

    • Guilin Sun
      Ansys Employee

      Not sure which example you are referring.

      The capacitance is q/V, or dQ/dv, which is mostly DC value, and it is used in RF analysis, not optical.

    • Mariah Ha
      Subscriber

      Thank you for the reply. I mean this parameter in the ssac tab , I am not sure what values should I specify (single or range ....) ? Any details on how to set these ?  

    • Guilin Sun
      Ansys Employee

      It should be the CHARGE response frequency which is far lower than optical frequency. You will need to do a transient simulation in order to know the frequency range, I believe.

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