What is the value of epsilon(infinity) of Aluminium in terahertz regime?
I think it is 1. Actually if you want to model permittivity of Aluminium, please, consider the tabulated data from Palik book (Handbook of Optical Constants of Solids). I believe it is the easiest way. I have attached an example how I have done the same for Silver. I have modeled the same structure as is considered in the paper
B Wood, JB Pendry, DP Tsai, Directed subwavelength imaging using a layered metal-dielectric system - Physical Review B, 2006 http://arxiv.org/pdf/physics/0608170.pdf
please sir please help me for aluminum . Iam a beginner i this field.i ve the book with me too. i need some guidelines on how to model it in dat format
I recommend you to use as a reference M.A. Ordal et al., Optical Properties of metals Al, Co, Cu, Au, Fe, Pb, Ni, Pd, Pt, Ag, Ti and W in the infrared and far-infrared, Applied Optics 22, 1099, (1983). There you can find all the necessary values to fit your dielectric function (of several metals) to experimental data.
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