Dear Filip, thanks very much for your help. On Wed, Sep 26, 2012 at 10:58 AM, Filip Dominec <[email protected]>wrote:
> Dear Hossein, > the permittivity of metals is a complex function of a nontrivial > dependence of frequency. > As far as I know, basically there is big negative real part and > diverging imaginary part for low frequencies, few resonant bumps in > the optical/UV region, and a limit of 1+0i for X-rays. If you > properly define this function using several polarizabilities in meep, > you may get along without explicit setting of conductivity or > permeability for nonferromagnetic metals. > > Please look at Aaron's page discussing this: > http://falsecolour.com/aw/meep_metals/ > An example script in Python is also at > http://fzu.cz/~dominecf/misc/meep/index.html#mat_mod . > > Hope this helps, > Filip > > 2012/9/26, hossein reisi <[email protected]>: > > Hi > > Dear all meep users > > first, i sorry for my silly question. i don't have spacial info in > physics. > > I want to use silver and gold in my simulation. We know that relative > > permittivity (or dielectric constant) of metals (such as silver and gold) > > are 1 (or very close to 1). > > when i set epsilon of metal materials to one in simulation, nothing > > happened.(it's like air) > > so may i set other properties of metal materials for better results such > as > > mu(permeability) or D(conductivity)?? > > thanks for your helps. > > > > _______________________________________________ > meep-discuss mailing list > [email protected] > http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss >
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