| Abstract Scope |
Thermal management is a central challenge facing our society. from the chip-scale to the data center level. In this context, controlling and leveraging light emission through passive or active means remains a comparatively underexplored approach. In this talk, I will first introduce our work on thermal photonic strategies to control the spectral and directional characteristics of thermal emission over infrared wavelengths. I will next demonstrate how Kirchhoff's law of thermal radiation can be violated in these systems over broad wavelengths by magnetic-field induced nonreciprocity, enabling new capabilities for radiative heat transfer. As one application of these capabilities, I will summarize our recent advances in radiative cooling technologies for passive, non-evaporative cooling. This includes polymeric coatings as well as other nanomaterial-based approaches that can enable sustainability capabilities for building roofs, walls and windows. Finally, I will introduce our ongoing work on thermophotonic cooling enabled by LEDs. |