Room temperature Bloch surface wave polaritons

Abstract

Polaritons are hybrid light-matter quasi-particles that have gathered a significant attention for their capability to show room temperature and out-of-equilibrium Bose-Einstein condensation. More recently, a novel class of ultrafast optical devices have been realized by using flows of polariton fluids, such as switches, interferometers and logical gates. However, polariton lifetimes and propagation distance are strongly limited by photon losses and accessible in-plane momenta in usual microcavity samples. In this work, we show experimental evidence of the formation of room temperature propagating polariton states arising from the strong coupling between organic excitons and a Bloch surface wave. This result, which was only recently predicted, paves the way for the realization of polariton devices that could allow lossless propagation up to macroscopic distances.

References in corpus (3)

• Quantum fluids of light
• Observation of Superfluidity of Polaritons in Semiconductor Microcavities
• Quantum-fluid dynamics of microcavity polaritons

Cited by in corpus (9)

• Interacting polariton fluids in a monolayer of tungsten disulfide
• Unveiling the mixed nature of polaritonic transport: From enhanced diffusion to ballistic motion approaching the speed of light
• Ultrafast flow of interacting organic polaritons
• Strongly enhanced light-matter coupling of a monolayer WS2 from a bound state in the continuum
• Tunable out-of-plane excitons in 2D single crystal perovskites
• Sagnac interferometry with coherent vortex superposition states in exciton-polariton condensates
• Optical resonators based on Bloch surface waves
• Disorder-enhanced transport in a chain of lossy dipoles strongly coupled to cavity photons
• Optical amplifier based on guided polaritons in GaN and ZnO