Steady-state thermoreflectance (SSTR) is an optical measurement technique used to measure the thermal conductivity or boundary conductance of thin films and coatings ranging from a few nanometers up to tens of microns. Use of traditional steady state concepts in combination with a laser based pump-probe configuration allows for measurements of the thermal conductivity of materials from 0.05 W/m/K up to 2,500 W/m/K. We will discuss the measurement principles as well as a few emerging application spaces.
Dr. John Gaskins is the Co-founder and President of Laser Thermal Analysis and a Principal Scientist in the Department of Mechanical and Aerospace Engineering at the University of Virginia. John has conducted research characterizing the mechanical, optical and thermal properties of materials since 2005. His work developed methodologies for testing the size dependent properties in thin film structures.
Tags: SSTR-F, Steady-State ThermoReflectance, Fiber Optics, Thin Films, Coatings