Hello there,
I am trying to get a linear, dipole-like source in a circular cavity, taking
advantage of cylindrical coordinates.
I am looking for the best way to do that and encountered two problems, with the
linearity of the source and positioning.
First, I assumed that to get a linear point
Dear all,
I am new to MEEP and I am trying to simulate a gold plasmonic scatterer.
I am specifically interested in utilizing a 45degrees polarized source (between
x and y polarization) or a circularly polarized source in order to excite the
plasmonic nanoparticle. What would be the most efficie
Dear all,
I have seen that it is possible to input a dispersive complex permittivity for
a material by using for example DrudeSusceptibility or
LorentzianSusceptibility. Is it possible to do the same for conductivity models
such as the ones that are commonly used for 2D materials? I am also inte
Dear all,
I was wondering if the source related flux can be removed from a nearfield box
defined as
nearfield_box = sim.add_near2far(frq_cen, dfrq, nfrq,
mp.Near2FarRegion(center=mp.Vector3(x=-lxm/2),size=mp.Vector3(0,2*lym/2,2*lzm/2),
weight=+1),
Dear all I apologize for reposting this but I mistakenly sent it as a reply to
another topic before,
I have seen that it is possible to input a dispersive complex permittivity for
a material by using for example DrudeSusceptibility or
LorentzianSusceptibility. Is it possible to do the same for
> On Nov 9, 2020, at 11:19 AM, Nikolaos Matthaiakakis
> wrote:
> I was wondering if the source related flux can be removed from a nearfield
> box defined as
> ...
> by using sim.load_minus_flux_data(,) in a similar way as used for flux
> monitors.
Yes, use sim.load_minus_near2far, documente
> On Nov 9, 2020, at 11:24 AM, Nikolaos Matthaiakakis
> wrote:
> I have seen that it is possible to input a dispersive complex permittivity
> for a material by using for example DrudeSusceptibility or
> LorentzianSusceptibility. Is it possible to do the same for conductivity
> models such as
Hello
I am trying to relate the material data(sigma, gamma, etc..) from the Meep
material library to the literature from Horiba Technical. NiCr for example,
use a value that is not seen from the literature.
[image: NiCr (1).jpg]
Is the omega_n in Meep not equals to the omega_p in this literature?
> On Nov 9, 2020, at 10:35 AM, Nikolaos Matthaiakakis
> wrote:
> I am new to MEEP and I am trying to simulate a gold plasmonic scatterer.
> I am specifically interested in utilizing a 45degrees polarized source
> (between x and y polarization) or a circularly polarized source in order to
>
I would step back and ask why you want such a small Δt.If you drastically
shrink Δt, the accuracy will still be limited by your spatial resolution Δx, so
it is not clear what you hope to learn.
Furthermore, if your frequency is 1THz, then a timestep of 0.0264ps is only
about 2% of a cycl
If it is just a problem with the precise grid, then it should go away as you
increase the resolution. If the problem doesn't disappear with increasing
resolution, then you have a bug somewhere else.
(However, I'm curious about what you hope to learn from the far field. In a
periodic structure
I just needed to do a fresh Meep install, on a fresh install of Ubuntu
18.04. As usual, I used the script in the "build from source" section of
the docs. All was well, except:
1) The meep python package is installed to
/usr/local/lib/python3.6/site-packages but that directory is not added
to
Thank you and I will try increasing the resolution.
My research lies in physically-based rendering in Computer Graphics,
where I would like to apply wave optics to improve the accuracy of
ray-based material models used in computer graphics. We are making the
assumption that we are in the far-field
Hi,
I am a very beginner to FDTD simulations. I already gave a function to
calculate the refractive index in a cell. Now I have to make some
fluctuations at some point say (-49.9, -49.9,0). I have provided my code
below, but it doesn't seem to be giving me the required change. Am I doing
somethin
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