English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Monolayer transition metal dichalcogenides (TMDCs) have recently beenproposed as a unique excitonic platform for advanced optical and electronicfunctionalities. However, in spite of intense research efforts, it has beenlargely overlooked that, in addition to displaying rich exciton physics, TMDCsalso possess a very high refractive index. This opens a possibility to utilizethese materials for constructing resonant nanoantennas based on subwavelengthgeometrical modes. Here we show that nanodisks fabricated from exfoliatedmultilayer WS$_2$ support distinct Mie resonances and so-called anapole statesthat can be easily tuned in wavelength over the visible and near-infraredspectral range by varying the nanodisks' size and aspect ratio. We argue thatthe TMDC material anisotropy and the presence of excitons substantially enrichnanophotonics by complementing traditional approaches based on plasmonics andwell-known high-index materials such as silicon. As a proof-of-concept, wedemonstrate a novel regime of light-matter interaction, anapole-excitonpolaritons, which we realize within a single WS$_2$ nanodisk. Our results thussuggest that nanopatterned TMDCs are promising materials for high-indexnanophotonics applications with enriched functionalities and superiorprospects.

Transition metal dichalcogenide nanodisks as high-index dielectric Mie nanoresonators