2018/09/25 by M. Król, Mateusz Król, K. Lekenta +19 · 1 citation
Materials Science · Physics and Astronomy · #2D Materials and Applications #Dielectric #Exciton #Mechanical and Optical Resonators #Monolayer #Photon #Polariton #Polarization (electrochemistry) #Resonance (particle physics) #Strong Light-Matter Interactions #cond-mat.mes-hall
paper · pdf · doi:10.1039/c9nr02038a
published as Nanoscale 11, 9574-9579 (2019) · 7 pages, 7 figures
arxiv created 2018/09/25 · openalex publication_date 2019/01/01 · arxiv updated 2019/05/20 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/05
Monolayer transition metal dichalcogenides, known for exhibiting strong excitonic resonances, constitute a very interesting and versatile platform for the investigation of light-matter interactions. In this work, we report on a strong coupling regime between excitons in monolayer WSe2 and photons confined in an open, voltage-tunable dielectric microcavity. The tunability of our system allows us to extend the exciton-polariton state over a wide energy range and, in particular, to bring the excitonic component of the lower polariton mode into resonance with other excitonic transitions in monolayer WSe2. We can retain up to 40% of initial circular polarization of the laser or loose it completely if polariton modes are brought into resonances with low energy excitonic modes.