Try taking your structure and following this tutorial (perhaps focusing on the final section, "Band Diagram"): http://ab-initio.mit.edu/wiki/index.php/Meep_Tutorial/Band_diagram,_resonant_modes,_and_transmission_in_a_holey_waveguide
You can take the PML off of the left and right sidewalls with something like: (set! pml-layers (list (make pml (direction Y) (thickness dpml)))) Best, Judson On Wed, Jun 29, 2011 at 2:30 PM, <[email protected]> wrote: > Hello, Everyone, > > I want to use MEEP to do a FDTD analyse for a PBG Waveguide. the Structure > is something look like this: > ooooooo > ooooooo > ooooooo > ooooooo > xxxxxxx > xxxxxxx .... > xxxxxxx > ooooooo > ooooooo > ooooooo > ooooooo > in the structure "o" and "x" are all airholes, only with different radius. > I made the PML around the cell, and swept the frequency. the simulation > ran just without end. i thought that was a resonance. But what i dont > understand is, with PML all around, why wouldnt the energy total absorbed? > Could someone help me with this, or give me some advices how to set the > boundaries? > > Best wishes > Dudu Zhang > > > _______________________________________________ > meep-discuss mailing list > [email protected] > http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss > >
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