Dear all, I am running a long 3d pulse propagation in a dielectric structure that involves a microring and some periodic waveguide.
The device is embedded in a homogeneous medium, lies in the (X,Y,0) plane and is excited with a pulse polarized along Z. This made me use an ODD symmetry along the Z direction (please correct if I'm wrong). I have four sensors, arranged all not to intersect different dielectric regions, but they do cross the Z=0 plane. After running for a reasonably long time, the flux I recover from them displays some strange narrow ripples, much narrower and more irregular (jagged, more like) than what I would expect due to resonance or scattering.. These numerical errors are particularly dramatic in the slow light range and especially within the first bandgap. Also, I am not using distributed MEEP. Has anyone encountered a similar problem before? Any feedback would be much appreciated. _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
