Hi all,
I am trying to simulate a plane wave passing through a dispersive,
absorptive medium the density of which varies in space. However, I do not
achieve a situation in which I have both, dispersion and spatial dependence
in one simulation, separately it works fine and produces what I want. I
suspect that I have not properly understood the use of "extra-material". I
have searched the mailing-list but have not found an example of how it
should be used. I would appreciate any hint on how this is done. I use meep
1.1.1 on ubuntu 9.04. Below I have reproduced the code that defines the
material-func and the geometry setting. Thanks very much for your help.
Cheers,
Jakob
Code (I am happy to provide more, but did not want to clutter the mail
unnecessarily):
(define (atoms-func r)
(make dielectric (epsilon 1)
(E-polarizations
(make polarizability (omega omegaresonance) (gamma linewidth) (sigma
(atomic-density r Rx Ry))))))
(set! extra-materials (list atoms-func))
(set! geometry
(list
(make block
(center 0 0)
(size (* 2 Rx) (* 2 Ry) infinity)
(material (make material-function (material-func atoms-func))))))
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