Fig. 4From: Spectroscopy of the Surface Polaritons in the CdXZn(1−X)P2 Solid SolutionsImpact of the doping on the reststrahlen bands in CdXZn(1−X). The dielectric function of of CdXZn(1−X). a The real part of the dielectric function. b Distribution of the oscillator strength (Lorentz oscillator model) vs. corresponding oscillator wavenumber. c Widths of the reststrahlen bands vs. corresponding oscillator wavenumberBack to article page