[MPB-discuss] Propagation constant with find-k function again

2008-11-08 Thread Yiling Qi
Dear Steven, Thanks for your suggestion before. As you mentioned, I really need to fix a frequency first, but the wavelength equals to 0.5um, and the lattice period is 11um( I am now repeating a result from PRL paper), which makes the frequency 22 in MPB, too big to find the root? On

Re: [MPB-discuss] Propagation constant

2008-10-30 Thread Steven G. Johnson
On Oct 30, 2008, at 5:35 AM, Yiling Qi wrote: Dear Steven, My simulated structure is a 2D periodic photonic lattice (the contrast of refractive index is very small, the order is only around exp(-4). Then kx and ky are meaningful for the bandstructure, but apparently there will be

Re: [MPB-discuss] Propagation constant

2008-10-28 Thread Yiling Qi
Yiling Re: [MPB-discuss] propagation constant in MPB Steven G. Johnson Sat, 12 Jul 2008 11:59:04 -0700 On Jul 11, 2008, at 10:41 AM, Yiling Qi wrote: I am now simulating a 2D (square lattice) photonic crystal. I set k- points to be Gamma-X-M. instead of the relationship between frequency

Re: [MPB-discuss] Propagation constant

2008-10-28 Thread Steven G. Johnson
On Oct 28, 2008, at 10:19 PM, Yiling Qi wrote: Thanks for your kind response before, I have tried the find-k function, it could work well but still not completely satisfy my concern, since it can give out k(w), however what I would like to get is a relationship between kx/ky and