On Jul 14, 2008, at 5:33 PM, perrotton wrote: > and transmission, but I don't get why in certain case the light > prefers > go to backward or forward direction according to Qin-plane value. > Intuitively(but wrong), due to the symmetry of my structure (the > cavity > is centered on the x-axis) along x, the coefficient for transmission > and > reflection should be the same.
I'm not sure exactly what you're structure is, but realize that even if your cavity is symmetric the symmetry is broken by having the input on one side of the cavity, so transmission and reflection are certainly not required to be equal. See chapter 10 of our book (ab-initio.mit.edu/book) for a detailed discussion of how to analyze coupled cavity-waveguide systems. Steven _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
