On May 12, 2010, at 7:13 AM, Adnan Khan wrote:
I have simulated a metallic nanosphere using the procedure, which is given in the manual. I have a problem with the PML. When i set a PML to a lower value i.e. 0.001 or Zero then i get the Q-factor but at the same PML, i didn't find any resonance phenomena. And if i set the PML to 0.1 or 1 then i get no value for the Q-factor and also no resonance. I don't know where is the problem, may be PML is not fully supported with dispersive materials. Please somebody explain it to me.
As of Meep version 1.1 (released last year), Meep's PML fully supports dispersive materials.
However, your question confuses me, since your PML shouldn''t be overlapping your nanosphere. You want the computational cell to be large enough that the PML doesn't significantly overlap the near field of your resonant mode, since otherwise the PML will artificially add absorption to the mode.
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