Reply To: Why does source size keep expanding automatically?

[pm796]

 

Thank you for your reply, however this does not appear to be explained in the links you give. The BFAST link makes passing reference ‘As usual, the source injection plane should extend completely outside the simulation region..’ as if this was common knowledge, but it doesn't seem to be since others have the same question and I can’t find any information in the ‘reference’ manual. 

Note I am not trying to use a finite plane wave, I am trying to use an infinite plane wave with an infinitely repeating unit cell (i.e. periodic boundary conditions).