Condon model

In optics and materials science, Condon model is a mathematical formula for the frequency dependence of the chirality parameter of bi-isotropic or bi-anisotropic media. It was reported by Edward Condon, William Altar and Henry Eyring in 1937 in its definitive form, with its earlier forms being introduced by Max Born, Heinrich Gerhard Kuhn and Léon Rosenfeld, among others.