Thermal SPhPs

Investigation of thermally excited surface phonon polaritons in nanostructured polar dielectric materials.

Surface Phonon Polaritons (SPhPs) are evanescent hybrid electromagnetic waves. These waves can be generated thermally by heating an interface of two dielectric materials when at least one of these interfaces is formed by a polar dielectric (such as SiO2, SiC, SiN). SPhPs can be used as a source of coherent thermal radiation, an additional heat exchange channel in nanodevices, and as a source of monochromatic thermal radiation. In this project, we study the physical limits of SPhPs propagation and their existence in various materials. We also designing new hybrid metamaterials that can boost the performance of thermal photovoltaics and heat extraction devices at nanoscales.