Groundbreaking method excites phonon-polaritons for nanoscale lasers and efficient electronic device cooling

https://www.eurekalert.org/news-releases/1077028

"generates long-wave IR/ THz, cheaper, smaller, efficient exciting/ detecting phonon-polariton waves... emit using electrical current, graphene sandwiched between 2 hexagonal boron nitride slabs possessing significantly higher density of states... waves bounce back/ forth between boundaries... 1 V/µm current passed through graphene whose electrons accelerate/ scatter for efficient HPhP electroluminescence... cool-running smartphone or other device: sub-wavelength imaging, molecular sensing"