Kramers-Kronig transformation, for

Tan GL, DeNoyer LK, French RH, Guittet Ml, Gautier-Soyer M (2004) Kramers-Kronig transform for the surface energy loss function. J Electron Spectrosc Relat Phenom 142(2) 97-103... 

The real and imaginary parts of the complex refractive index are related by a mathematical expression called the Kramers-Kronig transform and one can be calculated from the other. The Kramers-Kronig transform for calculating the real refractive index from the imaginary part is defined as ... 

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