The discussion focuses on determining the absorption or extinction coefficient of alumina in the context of a temperature distribution problem related to laser drilling. A referenced article highlights the abrupt increase of the absorption coefficient of alumina at melting due to laser radiation and its subsequent decrease during solidification. The importance of kinetics in this change is emphasized. Additionally, a link to a resource discussing the extinction coefficient is provided for further insights. Understanding these coefficients is crucial for accurately modeling the thermal behavior of alumina during laser drilling processes.
