conversion efficiency that converts RCP to LCP or LCP to RCP in metasurface

- April 25, 2023 at 3:25 am
  
  Ryu Jiwon
  Subscriber
  
  How do I get a conversion efficiency that converts RCP to LCP or LCP to RCP in metasurface?
  I wrote the script with the help of the previous questions, but the graph is different from the paper.
  I want to plot the conversion efficiency graph when the rod size is l=220nm and w=120nm.
  The paper I refer to is https://www.researchgate.net/publication/348888528_Bandwidth_Unlimited_Polarization-Maintaining_Metasurfaces.
  This is a picture of a script and a plot I wrote.
  Below is a picture of the plot in the paper
- May 4, 2023 at 5:38 pm
  
  Guilin Sun
  Ansys Employee
  
  Sorry to reply you late due to ceratin circumstances.
  From your results, it seems the S parameter has some issues, at it changes violently. It might have higher differaction orders. Please use farfield option to pick up only yhr zero-th order.
  In addition, dupicating other's result can be very challenge, as the original authors may not give clear details. Sometimes people use the same concept but different math definitions. For example, left-and right- circular polarization can be opposite. TE and TM modes have the same issues.
  Please refer this post to check if everything is the same as the paper:
  Ansys Insight: Why my simulation result is different from published paper or experiment?

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