In the meep website, it is said that an complex epsilon of 3.4 + 0.101i at a frequency 0.42 (in your Meep units) can be modeled as (make medium (epsilon 3.4) (D-conductivity (/ (* 2 pi 0.42 0.101) 3.4)))
However, in most of the text book the complex epsilon is defined as epsilon = Re(epsilon) - Im(epsilon)*i I want to know if this is just a matter of sign convention? Meep reference says that the imaginary part of epsilon is associated with absorption loss in the material if it is positive. However, in the text books the imaginary part of epsilon is associated with absorption loss if it is negative. Thank you very much, Kaushik _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
