On Jul 30, 2009, at 5:27 AM, Leonid Panfil wrote:
I've been trying to calculate Q factor and mode volume for an H1
resonator with the holes' epsilon being less than one whilst
ignoring absorption. However, for values of epsilon below a certain
level the field seems to '"explode". The critical level of epsilon
seems to depend on resolution, the higher resolution the higher the
level. Changing the source to a gaussian-type didn't help.
Can anyone suggest a solution or a workaround?
If you make epsilon < 1 (using nondispersive materials) you may need
to reduce the Courant factor for stability, as discussed in the Meep
introduction.
Steven
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