Optical Constants of Several Multilayer Transition Metal Dichalcogenides Measured by Spectroscopic Ellipsometry in the 300–1700 nm Range: High Index, Anisotropy, and Hyperbolicity
Battulga Munkhbat, Piotr Wróbel, Tomasz J. Antosiewicz, Timur Shegai
Abstract
), and low absorption in the near-infrared region. Moreover, metallic TMDs show potential for combined plasmonic-dielectric behavior and hyperbolicity, as their plasma frequency occurs at around ∼1000-1300 nm depending on the material. The knowledge of optical constants of these materials opens new experimental and computational possibilities for further development of all-TMD nanophotonics.
Topics & Concepts
EllipsometryAnisotropyNanophotonicsRefractive indexMaterials sciencePlasmonDielectricTransition metalInfraredCondensed matter physicsOptoelectronicsOpticsNanotechnologyThin filmPhysicsChemistryCatalysisBiochemistry2D Materials and ApplicationsPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin Films