On Wed, 19 Dec 2007, Yuta Wakayama wrote: > I want to simulate the GDV (group velocity dispersion) of PCF (photonic > crystal fiber) with meep. Could you please tell me whether meep can do? > If it can do, I want to try it with the following geometric objects. How > should I add this ctl-file?
It will be much easier to do this calculation in MPB, which can directly compute the group velocity. In Meep, there are two ways I can think of. First, you could compute the band diagram using harminv, fit it to a polynomial, and differentiate that. Or, you could excite a single mode at a time using a narrow-band source and compute the group velocity as the ratio of flux to energy density. I suspect that the former will be more efficient since you can compute several bands at once. Regards, Steven G. Johnson _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
