Hi, the meep wiki tells me that only continuous rotational symmetry can be simulated using cylindrical coordinates. Since my model should be a grated ring segment, which means it has a 'slit' in the radial direction on top, that is repeated throughout the ring, I would need discrete rotational symmetry. I also tried to use a 2 dimensional simulation domain in cylindrical coordinates by setting:
(set! geometry-lattice (make lattice (size 10 10 no-size))) but the domain seems to be forced to 1D, at least in the r,phi plane. tobias -----Original Message----- From: "Breeze, Jon D B" <[email protected]> To: "[email protected]" <[email protected]>, "[email protected]" <[email protected]> Date: Fri, 1 Oct 2010 21:39:50 +0100 Subject: Re: [Meep-discuss] Periodic boundary condition Dear Tobias, Your best bet would be to use cylindrical coordinates. Then you could find the eigenmodes for a given azimuthal mode index. See the tutorial examples. Jon Breeze tobias <[email protected]> wrote: Hi, I am trying to find eigenmodes of a grated ring resonator. To do so I want to simulate one segment of the ring and apply periodic boundary conditions. I would like to know if there is another way to produce periodicity then mirror symmetry, since my boundaries are not parallel and therefore I cant use that. best regards Tobias _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss > Date: Fri, 1 Oct 2010 21:39:50 +0100 Subject: Re: [Meep-discuss] Periodic boundary condition _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
