Fully tunable exciton-polaritons emerging from WS monolayer excitons in an optical lattice at room temperature
arXiv:2102.09565 · doi:10.1038/s41467-021-24925-9
Abstract
Engineering non-linear hybrid light-matter states in tailored optical lattices is a central research strategy for the simulation of complex Hamiltonians. Excitons in atomically thin crystals are an ideal active medium for such purposes, since they couple strongly with light and bear the potential to harness giant non-linearities and interactions while presenting a simple sample-processing and room temperature operability. We demonstrate lattice polaritons, based on an open, high-quality optical cavity, with an imprinted photonic lattice strongly coupled to excitons in a WS monolayer. We experimentally observe the emergence of the canonical band-structure of particles in a one-dimensional lattice at room temperature, and demonstrate frequency reconfigurability over a spectral window exceeding 12 meV, as well as the systematic variation of the nearest neighbour coupling, reflected by a tuneability in the bandwidth of the p-band polaritons by 7 meV. The technology presented in this work is a critical demonstration towards reconfigurable photonic emulators operated with non-linear photonic fluids, offering a simple experimental implementation and working at ambient conditions.
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Cited by in corpus (12)
- Strongly enhanced light-matter coupling of a monolayer WS2 from a bound state in the continuum
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- Extended Bose-Hubbard model with dipolar excitons
- Enhancing ground state population and macroscopic coherence of room-temperature WS polaritons through engineered confinement
- In-situ tunable, room-temperature polariton condensation in individual states of a 1D topological lattice
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- Dirac Cones and Room Temperature Polariton Lasing Evidenced in an Organic Honeycomb Lattice
- Excitonic bound states in the continuum in van der Waals heterostructure metasurfaces
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