Femtosecond switching of strong light-matter interactions in microcavities with two-dimensional semiconductors.

ABSTRACT: Ultrafast all-optical logic devices based on nonlinear light-matter interactions hold the promise to overcome the speed limitations of conventional electronic devices. Strong coupling of excitons and photons inside an optical resonator enhances such interactions and generates new polariton states which give access to unique nonlinear phenomena, such as Bose-Einstein condensation, used for all-optical ultrafast polariton transistors. However, to reach the threshold for condensation high quality factors and high pulse energies are required. Here we demonstrate all-optical switching exploiting the ultrafast transition from the strong to the weak coupling regime in low-Q microcavities embedding bilayers of transition metal dichalcogenides with high optical nonlinearities and fast exciton relax

SUBMITTER: Genco A 

PROVIDER: S-EPMC12260094 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature