Sir,
I have to design a structure with SOI as substrate and Si layer over it with air holes etched.my aim is to achieve slow light . I have used extension code available on net for Dispersion calculation. I am having trouble understanding the output of the extension code.I tried running the code with some changes according to my ctl file I am getting outputs attached in file named group index. please guide as I am getting confusing(-ve group index values) results.if u can provide an email address iwould like to mail my results and ctl file _______________________________________________ mpb-discuss mailing list mpb-discuss@ab-initio.mit.edu http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/mpb-discuss