MTSE Lab

As electronic devices become smaller, smarter, and faster, their power density increases while the surface area for heat dissipation decreases, creating significant challenges for thermal management. In close collaboration with industry, we aim to correlate the thermal transport properties of components across different size scales and find a solution to enhance the thermal performance of devices. Heating in different forms at various time and length scales can induce diverse charge and spin dynamics, offering potentially new mechanisms for device operation at ultrashort time scales with higher energy efficiency. At these times scales, on the order of 10-12 seconds or picoseconds, heat carriers are far from thermal equilibrium. We investigate how this nonequilibrium state evolves over time and space, and how it interacts with charge and spin dynamics. We aim to advance thermal metrology that enables important observations of heat transport behaviors. Our focus includes developing thermometers with high sensitivity to temperature, along with improved spatial and temporal resolutions. We also incorporate machine learning in our data analysis to further extract meaning insights from complex datasets.