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Photonics

Photonics

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  3. Extinction spectra of gold nanoparticle

Extinction spectra of gold nanoparticle

    • September 29, 2023 at 12:39 pm
      Sarojini Mahajan
      Subscriber

      I want to calculate the extinction spectra of Gold nanospheres of different sizes and in different media and plot the extinction graphs in one graph. How can I do it using parameter sweep?

    • September 29, 2023 at 4:40 pm
      Guilin Sun
      Ansys Employee

       

       

       

       

       

       

       


       

    • September 29, 2023 at 8:46 pm
      Guilin Sun
      Ansys Employee

       

      Somehow my reply was either disappeared or malfunctioned. Here is it again:


       

    • September 29, 2023 at 8:51 pm
      Guilin Sun
      Ansys Employee

       


    • September 29, 2023 at 8:53 pm
      Guilin Sun
      Ansys Employee

      Sweeping size parameters are easy: https://optics.ansys.com/hc/en-us/articles/360034922873-Parameter-sweep-utility
      However, to sweep material, you may need to script in “model”, say you have 2 materials to be swept, you may sweep the material number “nmaterial”, and use script
      select(“object1”);
      if(nmaterial==1){
      set(“material”,“5CB – Li”);
      if(get("material")=="") 
      { set("index",index1); }
      ”
      if(nmaterial==2){
      set(“material”, “Si (Silicon) - Palik”);
      if(get("material")=="") 
      { set("index",index2); }
      ”
      This suggests that the material 1 is ”5CB – Li” or index1, and material 2 is “Si (Silicon) - Palik”. If you know it is dispersive material from the material database, the other “if” can be deleted.

    • September 29, 2023 at 8:54 pm
      Guilin Sun
      Ansys Employee

      hope this image can be shown correctly:

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