Real-space nanoimaging of THz polaritons in the topological insulator Bi<sub>2</sub>Se<sub>3</sub>.
Shu Chen, Andrei Bylinkin, Zhengtianye Wang, Martin Schnell, Greeshma Chandan, Peining Li, Alexey Y. Nikitin, Stephanie Law, Rainer Hillenbrand
Abstract
surfaces, massive bulk carriers and optical phonons. Our work provides critical insights into the nature of THz polaritons in topological insulators and establishes instrumentation and methodology for imaging of THz polaritons.
Topics & Concepts
PolaritonTopological insulatorTerahertz radiationPhysicsPhotonOptoelectronicsPhotonicsSurface plasmon polaritonPlasmonOpticsCondensed matter physicsSurface plasmonPlasmonic and Surface Plasmon ResearchTopological Materials and PhenomenaThermal Radiation and Cooling Technologies