Molecular Refraction and Nonlinear Refractive Index of Supercritical Carbon Dioxide under Clustering Conditions

摘要

A model of a clustered binary medium that describes the anomalous behavior of the linear (Lorentz-Lorentz function) and nonlinear (nonlinear refractive index) optical properties of supercritical CO_2 is proposed. The validity of this model describing the anomalous behavior of the nonlinear refractive index of supercritical CO_2 in the vicinity of the Widom line is verified using a numerical simulation of the molecular dynamics of CO_2.