The field units are totally arbitrary. If you don't have any nonlinear materials, you can multiply the input current amplitudes by any constant and the resulting fields will be multiplied by the same constant. Computing anything that depends on the absolute magnitude of the field is not meaningful. You always want to compute appropriate nondimensionalized quantities, such as the transmitted flux relative to the transmitted flux in some reference calculation.
One of the most common confusions is that people expect for there to be some fixed relationship between the source/current amplitude and the resulting field. This is not the case. Exactly the same current source placed in a different geometry will produce a different field, due to the difference in local density of states. Steven On Jul 17, 2008, at 8:07 AM, Juntao Xi wrote: > I set output-efield-y on the spot where the source is. > The output Ey can be 138. > > What is this 138 normalized to? I am confused. _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
