Learning Forum

[Kian Goeloe]

Hi Guilin Sun,

Thank you for your quick reply. I really appreciate it!

I've added a picture of how the current structure looks like. 

To respond to your points: 

1. I do use periodic boundary conditions in y and z and PML in x. The substrate itself is larger than the simulation domain (to be specific, the simulation domain is 420x420 nm and the substrate is 450x450 nm). I'm not sure if it is large enough in this case. What do you recommend?
2. Yes, I'm only interested in one wavelength. Thanks for the tip. What I did is set the source to a single center wavelength of 630 nm with zero wavelength span. Moreover, I've unchecked the "optimize for short pulse" checkbox. 
3. In this case, is it preferable to simulate with linear polarized light separately and in the post processing combine the results? After following several examples I found on Ansys and Ansys forum, I believed that this was the way to do it. Also one of the reason why I thought that the S parameter object library would be helpful. Right now, I'm combining both sources to obtain circular polarized light (for the record, did not do that when I tried the S parameters object library. There I simulated two object libraries for y and z polarized light and tried to combine the result in post processing). 

And also thanks for the forum tip, I'm new at this, and eager to learn. If you need more information, please do not hesitate to reply. Thanks in advance!