Abstract

The Kramers-Kronig relation (KKR) is widely used to determine optical parameters of the bulk materials. It allows to restore amplitude reflectance from the energy reflection coefficient measured in a wide spectral band and thus to receive at every wavelength two simple equations for refractive index real and imaginary parts determination¹. In the case of reflection from bulk material surface correctness of the KKR is the sequence of the fundamental physical properties.² These properties prescribe that amplitude reflectance zeros must be located in the lower half-plane.

© 1992 Optical Society of America