Although being new to meep, I dare to speculate that this is probably because a gaussian function is never zero (except at infinite). In any case, I guess the amplitude you are reporting will not affect your simulation at all.
Miguel On 10 June 2010 13:55, G S <[email protected]> wrote: > Dear Steven and meep users, > > I made a simulation without structure (only a block with a neff index) in > order to visualize how the gaussian source generates waves in the space and > also to see its profile. > > I found something that I can not understand. In MEEP Reference, says that > by default the temporal width of the source is 5 times (1/df) both sides. > Taking this into account, I could see that the source really takes this > times ON, but there is a little problem. I have magnified the field using -m > and -M of the h5topng utility, and I could see that the source is still > present with an amplitude of 10e-6 approx. Why is the source really not > turned OFF? Am I doing something wrong? (From other simulation using > run-sources+ some time, I could see this effect also, so the question still > remains the same). > > I hope somebody can help me with this. > > Thank you in advance, > Gerardo
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