Ultrafast Nano-Imaging and Optical Control of Hyperbolic Phonon Polaritons at hBN/WS${}_2$ Heterojunctions

Kazuki Kamada, Keisuke Shinokita, Fanyu Zeng +7

Manipulating nanoscale light-matter interactions on ultrafast time scales is indispensable for future polaritonic devices. Hyperbolic phonon polaritons (HPhPs) in van der Waals mat…