Hi Adrian, I concur with Ben. If you don't show what you do in the .ctl file, we probably won't be able to help you...
m. ----- Original Message ----- From: adrian To: Steven G. Johnson Cc: [email protected] Sent: Thursday, March 06, 2008 6:05 AM Subject: Re: [Meep-discuss] wrong due to subpixel averaging? Hi, Steven and meep users: I checked out again my output and I'm sure I looked at file correctly. Maybe I should attach my file. Thank you in advance. Cheers Adrian On Mar 5, 2008, at 8:03 PM, adrian wrote: > I have one question on subpixel averaging. > I defined a disk with diameter equal to 16nm and height equal > to 24nm and epsilon equal to 11, however, > meep produced a disk which epsilon is 7.2 and its diameter is > smaller than 12nm. > The grid size is 2nm and this disk is located in the middle of air > gap. This air gap is 20nm. I have used (set! eps-averaging? false). This sounds strange to me; possibly you are looking at the output file correctly. For any pixel that is completely inside the object, it will use the dielectric constant you specified. And there should be no way that the diameter could be more than two pixels smaller than you specified. Intermediate epsilon values are only used for pixels (voxels) that straddle a dielectric interface. Steven _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss ___________________________________________________________________ 付費才容量無上限？Yahoo!奇摩電子信箱2.0免費給你，信件永遠不必刪！ - 馬上體驗！ _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
