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Program for calculating negative index of refraction according to the S parameters

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mtts

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Hi,

I need a program which made it possible to calculate the negative index of refraction according to the parameters S. because I find a major problem with bends of acos.
the formula of n is n = ± accos(X)/kd +2Πm/kd

with X= (1-(s11)²+(s21)²)/2(s21)²

Provided that Im(n)>0

If somebody have some ideas or some interesting sources, it would be great!!!!!

Thanks a lot for your help!!
 

Re: metamaterials

do software matlab can not performance?
 

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