Hello every one i have come to know that how to define the materials in FDTD(Lumeric) but for this we have to define Real and imaginary part of refractive index for the range of 400 nm to 700 nm... the better way is to find it by formula???? and how i have some formulas but some of them may be doubtful??? do you know any databased book,website??? i want to define for calcium carbide???
I think you might be looking for the Lorentz or Drude models for the materials. Given just a few physical constants, you can calculate the complex permittivity or refractive index over a wide range of wavelengths. For a description of the theory and the parameters for some materials, check out Lecture 2 here:
http://emlab.utep.edu/ee5390em21.htm
You probably don't need this, but here is also a short discussion of incorporating the Lorentz-Drude model into FDTD. See Lecture 10 here:
http://emlab.utep.edu/ee5390fdtd.htm
Thanks for your answer but it has not enough information i have required...i need List of Real and imaginary refractive index,s of Nickel Titanium TiNi Alloy... which is not available in present handbooks of optical constants?
this website can be helpful http://refractiveindex.info/?shelf=main&book=Ti&page=Johnson
this website can be helpful http://www.angstec.com/database . I always take help from it.
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