Is there free software for simulating near field diffraction

AI Thread Summary
Free software options for simulating near field diffraction from a 2D periodic array of conductors and dielectrics on a dielectric slab are being sought. A specific suggestion is FABLE, which can be found on SourceForge, as it offers relevant simulation capabilities. Users express uncertainty about the software's utility for their specific needs but remain hopeful about finding suitable tools. The discussion highlights the importance of identifying effective simulation programs for this niche application. Overall, the search for free simulation software continues to be a topic of interest among users.
Christofer Br
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I'm looking for a free software I could use to simulate near field diffraction from a 2d periodic array of conductors and dielectrics placed on the surface of a dielectric slab.
 
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