Revealing Dark Exciton Signatures in Polariton Spectra of 2D Materials
Beatriz Ferreira,
Hangyong Shan,
Roberto Rosati
et al.
Abstract:Dark
excitons in transition metal dichalcogenides (TMDs) have been
so far neglected in the context of polariton physics due to their
lack of oscillator strength. However, in tungsten-based TMDs, dark
excitons are known to be the energetically lowest states and could
thus provide important scattering partners for polaritons. In this joint theoretical–experimental
work, we investigate the impact of the full exciton energy landscape
on polariton absorption and reflectance. By changing the cavity detuning,
we vary… Show more
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