dear alli am new to MEEP. I want to know how to define a plane polarizedwavefrontsource in meep.that is, in 2D simulations (xy plane) how to give a plane wave polarizedin y direction traveling in xdirection. alsothe .20 version defines Dconductivity in libctl tools. but simulation crashes (NaN) when the wave reaches just within the metal boundary.real part of metal is negative while imaginary is positive. how to sort this problem.seeking a reply.thank you.
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