Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Regarding the Farfield simulations and placement of monitors › Reply To: Regarding the Farfield simulations and placement of monitors

May 23, 2024 at 6:37 pm
Amrita Pati
Ansys Employee

Hi Prabha,

Keeping the monitor half a wavelength away from the PML is not based on an exact equation but more of a rule of thumb for most simulations. I will recommend placing it about 1 um away. In the 2nd screenshot, it looks like the monitor is in the PML, so I am not even sure if it is recording the fields. If you do not see any difference between the 1 um and 2.5 um, then I will recommend using the first as you can same time and resources simulating a smaller simulation domian.

Regards,
Amrita