Phonon Polaritons in Twisted Double-Layers of Hyperbolic van der Waals Crystals
Zebo Zheng, Fengsheng Sun, Wuchao Huang, Jingyao Jiang, Runze Zhan, Yanlin Ke, Huanjun Chen, Shaozhi Deng
Abstract
, a naturally biaxial hyperbolic crystal. The polariton isofrequency contours can be modified due to this interlayer coupling, allowing for controlling the polaritonic characteristics by adjusting the orientation angles between the two layers. Our findings provide opportunities for control of nanoscale light flow with twisted stacks of vdW crystals.
Topics & Concepts
Polaritonvan der Waals forceCondensed matter physicsPhononCoupling (piping)Materials scienceNanoscopic scaleCrystal (programming language)Photonic crystalTwistOpticsPhysicsOptoelectronicsNanotechnologyQuantum mechanicsGeometryMoleculeComputer scienceMathematicsMetallurgyProgramming languageMetamaterials and Metasurfaces ApplicationsThermal Radiation and Cooling TechnologiesPlasmonic and Surface Plasmon Research