Inverse design using (lumopt) EME solver

[kfateme]

Hi,

I have a question regarding the inverse design of a Y-branch example for Lumerical (https://github.com/chriskeraly/lumopt/blob/release/examples/Ysplitter/splitter_opt_2D.py). I want to write a code for the example using the EME solver, not FDTD solver. What code should I write for the figure of merit (FOM) section? The EME solver does not have any monitors, so how can I optimize one of the output ports for maximum transmission (100 percent)?

if I use commands like " s=getresult("user s matrix"); fom=abs(s(2,1))^2" then how can I set fom_target?

Best regards