Determining the complex refractive index from two discrete angles in the specular reflectance profile of p polarized light

Upon illumination with p polarized light, the reflectance profile at an interface between a front transparent and a rear attenuating medium contains two characteristic angles that can be measured with sufficient accuracy by use of common laser refractometers. We propose a simple method to determine the complex optical constants of attenuating samples from these two discrete angles, namely, the critical angle of attenuated total reflection and the pseudo-Brewster angle.

Automated summary

This study proposes a simple method to determine the complex optical constants of attenuating samples by measuring two characteristic angles of light at the interface. These two angles, namely the critical angle of attenuated total reflection and the pseudo-Brewster angle, can be accurately measured using common laser refractometers.