[Meep-discuss] Negative AC kerr coefficient

2009-10-26 Thread Bernd Schmid
Dear meep users/developers, has anyone made experience simulating a negative Kerr Coefficient n2? Is it theoretically possible to do that? I am simulating CW FWM, it works nicely for positive n2. However, when I use negative values in 1D simulations, I see spatial periodicities which are much

[Meep-discuss] Simulation abortion after adding an add-flux command

2009-10-14 Thread Bernd Schmid
Hello, I have a 2D Photonic Crystal simulation, which runs perfectly and stops after about 20 minutes as expected. However, as soon as I am adding this line: (define pump0 (add-flux fpump 0 1 (make flux-region (center 0 0 0) (size 0 0 0) (direction X the simulation stops after magnificent

[Meep-discuss] Simulation abortion after adding an add-flux command

2009-10-14 Thread Bernd Schmid
I forgot to mention one thing. After adding this line it suddenly takes twice the time for set_epsilon. I have a symmetry defined, can this be an issue? ___ meep-discuss mailing list meep-discuss@ab-initio.mit.edu

Re: [Meep-discuss] Simulation abortion after adding an add-flux command

2009-10-14 Thread Bernd Schmid
I appologize for the SPAM! Indeed, if I place this line after setting the symmetry everything is alright. I wasn't aware of that. Again, I am sorry for the inconvenience. Regards Bernd On Wed, Oct 14, 2009 at 6:56 PM, Bernd Schmid b.p.sch...@googlemail.comwrote: I forgot to mention one

[Meep-discuss] Spectral width

2009-09-11 Thread Bernd Schmid
Hello, I am simulating a continuous source which I switch off after time T=100. Over this time I am using the add-flux fluntion to obtain the spectrum. Theoretically, the spectrum should show equidistant nodes, the distance between them being df=1/(2T). However, looking at the output, the

[Meep-discuss] Absolute Values E-Field

2009-06-22 Thread Bernd Schmid
. index had been increased My question now is: - has the physical E also decreased by that factor or does possibly the E-monitor show a value that scales inversely with the refr. index? I would be very grateful for your response Sincerely Bernd Schmid University of Technology Hamburg

[Meep-discuss] flux-in-box in 1D simulation

2009-06-10 Thread Bernd Schmid
there be a series of numbers, one for each time step? Such that I get the flux at all times. This is how I am using the command: (define test (flux-in-box Z (volume (center 0 0 0) (size 0 0 0 I would be very grateful for your help. Thank you very much. Regards -- Bernd Schmid University