Thermal properties of optical thin-film materials

A survey of experimental methods and data for thin-film thermal conductivity and heat capacity is given. Simple microscopic theory is provided as a basis for understanding the very small values of thin-film thermal conductivity observed. Interfacial resistance effects, including some conjecture on origins, as well as applications of thermal property data are discussed. The needs for future development of this important area of investigation are summarized, and some suggestions for emphasis are provIded.