Studies on the opto-electronic properties of alkali halides from optical electronegativities

Abstract

A simple method of evaluating refractive indices from Duffy's optical electronegativity values is proposed. In the proposed empirical relations the optical electronegativity for the anion as well as the cation are taken into consideration in order to obtain refractive indices in alkali halides. The refractive indices so obtained are used in the evaluation of electronic polarizabilities in these compounds and the results are found to be in good agreement with the standard values.