Hybrid exciton-plasmon-polaritons in van der Waals semiconductor gratings

The authors investigate the optical properties of a heterostructure formed by a metallic substrate and a nanostructured transition metal dichalcogenide multilayer by measuring the reflectance spectrum at different multilayer thicknesses, filling factors and grating periods. The spectra show strong d...

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Autores principales: Huiqin Zhang, Bhaskar Abhiraman, Qing Zhang, Jinshui Miao, Kiyoung Jo, Stefano Roccasecca, Mark W. Knight, Artur R. Davoyan, Deep Jariwala
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2020
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Acceso en línea:https://doaj.org/article/fa41e8ce8a6246f6ab3fa02041414d9f
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Sumario:The authors investigate the optical properties of a heterostructure formed by a metallic substrate and a nanostructured transition metal dichalcogenide multilayer by measuring the reflectance spectrum at different multilayer thicknesses, filling factors and grating periods. The spectra show strong dispersion and avoided crossing of excitons, plasmons and cavity photons along with excitonic mode suppression at the anti-crossing point.