Comparative evaluation of absorption coefficients of KCl:Eu2+ and CaF2:Eu2+ using a spectrophotometer and an integrating sphere

Publisher Website
Google Scholar
Abstract
The absorption coefficients of two crystalline solid-state materials, KCl:Eu2+ and CaF2:Eu2+, are measured by the conventional method using a spectrophotometer. The Kubelka–Munk theory and diffusion approximation are also applied to determine the scattering and absorption coefficients of these samples from the measurements of diffuse transmission and reflection using an integrating sphere. The absorption coefficients obtained from these two different techniques are compared and their discrepancies are discussed in detail.