tran quyet thang hereiam2005@... writes:
Dear professor Johnson and Meep users,
It has been mentioned multiple times that a capacity similar to variable
mesh size can be emulated in meep by applying the coordinate transformation
technique formulated in Coordinate Transformation
Dear professor Johnson and Meep users,
It has been mentioned multiple times that a capacity similar to variable mesh
size can be emulated in meep by applying the coordinate transformation
technique formulated in Coordinate Transformation
Invariance in Electromagnetism.
However my attempts in
I also met this problem before.
If your structure is so large and calculation time is too long, you should
activate non-averaging to avoid divergence issue just like;
(set! eps-averaging? false)
Quoting dy zhao [EMAIL PROTECTED]:
Dear Dr. Steven and meep users,
Recently, I have met the
Thanks. One more thing about adding the sources in case of symmetries :
If I have a box of sizes 4, 4, 4 with odd symmetry on X and I want to add
a source with Ex with
f.add_point_source(Ex, src, vec(1, 1, 1), 10); where 10 means
the amplitude
then as far as I understand I have to add a
Hi Steven,
What you are saying is really very helpful. In fact I had no idea I
have to supply the symmetric
source. I will try it right now and see how it goes.
On the other hand I dont understand the thing with the symmetric eps.
Although I dont know how meep works internally with the
On Jul 30, 2008, at 9:20 PM, Jefferson Thomas wrote:
What you are saying is really very helpful. In fact I had no idea I
have to supply the symmetric
source. I will try it right now and see how it goes.
See: http://ab-initio.mit.edu/wiki/index.php/Exploiting_symmetry_in_Meep
If you don't
You are right. When I symmetrized the eps function the divergences disappeared.
I really didnt know that this one last pixel could have such a big influence.
I have also some other kind of divergences in other cases. They seem
not to be connected
to symmetries but arise from PML layers. I am
Your problem seems to stem from the fact that neither your structure
nor your sources obey the symmetry you specified.
On Jul 22, 2008, at 9:40 PM, Jefferson Thomas wrote:
meep::symmetry S=meep::identity();
S = S+ meep::mirror(meep::X, v)*(-1); /// Introducing symmetries
on X and Y
On Jul 16, 2008, at 10:11 PM, Jefferson Thomas wrote:
- exciting with one gaussian_src_time with freq 0.7, width 3.0 for the
Try using a narrower-bandwidth source centered on your mode
frequency. That will also help harminv out, in that with a narrower
bandwidth source harminv has cleaner
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