Dear Shampy, this topic has been discussed many times. Generally you can not force a complex value of permittivity in FDTD. You can however define a high-frequency oscillator that introduces losses.
More on this topic is at http://ab-initio.mit.edu/wiki/index.php/Dielectric_materials_in_Meep or search the mailing list. I tried to make a list of some realistic material models at http://fzu.cz/~dominecf/misc/eps/; the data used can be fed to MEEP. Finally I would like to ask you to stick to the "netiquette" and write your name as "Shampy Mansha", not "#SHAMPY MANSHA#". The capitals look like shouting, and the hashmarks look like something as banging your fist on the table before and after saying it... Regards, Filip Dominec 2014-06-12 18:01 GMT+02:00, #SHAMPY MANSHA# <shampy...@e.ntu.edu.sg>: > Dear Steven and other Meep users, > > I am doing a simulation in which I require to use a complex dielectric > constant of the form(say for example): > > epsilon = 1 + 0.01i > > For my simulation the frequency isn't fixed, instead I have to use a > gaussian source with some finite width. > And in the whole simulation I wish to use the same epsilon(epsilon = > 1+0.01i). > > Is there a way to do this kind of simulation? > > Thanks, > Shampy Mansha > NTU,Singapore > _______________________________________________ meep-discuss mailing list meep-discuss@ab-initio.mit.edu http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
