Photonics

Photonics

Topics related to Lumerical and more.

Dear all i want to know how to check Linear polarization intensity

    • naureen.ee
      Subscriber

       if in Lumerical's script editor we have already found Ex and Ey component plus using them RCP,LCP are imaged too on xy monitor for z=4400nm.But if i add RCP and LCP like in the attached picture then we got too much intensity.Plz guide in this regard how to form LP either using Ex ,Ey or RCP,LCP.

      x4400xy=getdata("monitor(4400)","x");
      y4400xy=getdata("monitor(4400)","y");
      E4400xy=getelectric("monitor(4400)");
      Ex4400xy=getdata("monitor(4400)","Ex");
      Ey4400xy=getdata("monitor(4400)","Ey");
      Ez4400xy=getdata("monitor(4400)","Ez");
      ELCPObs4400xy=Ex4400xy+1i*Ey4400xy;
      ERCPObs4400xy=Ex4400xy-1i*Ey4400xy;
      #image(x4400xy*1e6,y4400xy*1e6,abs(ERCPObs4400xy)^2);
      #image(x4400xy*1e6,y4400xy*1e6,abs(ELCPObs4400xy)^2);
      image(x4400xy*1e6,y4400xy*1e6,abs(Ex4400xy)^2);
      image(x4400xy*1e6,y4400xy*1e6,abs(Ey4400xy)^2);
      Linear2E4400xy=ELCPObs4400xy+ERCPObs4400xy;
      image(x4400xy*1e6,y4400xy*1e6,abs(Linear2E4400xy)^2);

    • Guilin Sun
      Ansys Employee

      "But if i add RCP and LCP like in the attached picture then we got too much intensity.Plz guide in this regard how to form LP either using Ex ,Ey or RCP,LCP."

      I am not sure if I understand your question correctly. The script is roughly ok except the RCP and LSP may need to be normalized with sqrt(2).

      Do you mean the RCP and LCP intensity is too higher? have you checked the Ex and Ey? 

       

       

    • naureen.ee
      Subscriber

      No sir i means when i visualize intensity for linear polarization then it comes in the order of 10^4 rather RCP and LCP intensities at max are about 280.Sir do u mean

      Linear2E4400xy=((ELCPObs4400xy)/sqrt(2))+((ERCPObs4400xy)/sqrt(2));

    • Guilin Sun
      Ansys Employee

      According to abs(Linear2E4400xy)^2), it will be (2*Ex4400xy)^2. Have you checked abs(Ex4400xy)? Please check each quntities involved. Except you run anther script and the workplace changes the result, you should have consistent data. Please check.

    • naureen.ee
      Subscriber

      Alright sir i do

       

    • Guilin Sun
      Ansys Employee

      This is purely math, I believe you can solve it.

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