Hello all, I have searched the archives and read through all the material on the website but am still unsatisfied with my understanding of units on the Material Dispersion page.
http://ab-initio.mit.edu/wiki/index.php/Meep_Tutorial/Material_dispersion I know from the archives that omega and gamma are to be specified in units of 2*pi*c/a. But I find the two equations given for the relative dielectric constant to be extremely confusing and inconsistent. What are the units of the numbers given in the first "E-polarizations" entry? (omega 1.1)(gamma 1e-5)(sigma 0.5) 2*pi*c/a, 2*pi*c/a, and a unitless fraction, correct? How is that consistent with the equation epsilon(f) = 2.25 + ( (1.1^2)*0.5 ) / ( (1.1^2) - (f^2) - i*f*(1e-5)/(2*pi) ) I would greatly appreciate anyone who can help me clarify this. Thanks
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