期刊
PHYSICAL REVIEW LETTERS
卷 119, 期 25, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.119.253904
关键词
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资金
- Royal Society [IE 160465]
- ITMO University visiting professorship scheme via Government of Russia [074-U01]
- Severo Ochoa Excellence Programme [SEV-2015-0522]
- Fundacio Privada Cellex
- Fundacio Privada Mir-Puig
- CERCA (Generalitat de Catalunya)
The functionality of many nonlinear and quantum optical devices relies on the effect of optical bistability. Using microcavity exciton-polaritons in a honeycomb arrangement of microcavity pillars, we report the resonance response and bistability of topological edge states. A balance between the pump, loss, and nonlinearity ensures a broad range of dynamical stability and controls the distribution of power between counterpropagating states on the opposite edges of the honeycomb lattice stripe. Tuning energy and polarization of the pump photons, while keeping their momentum constant, we demonstrate control of the propagation direction of the dominant edge state. Our results facilitate the development of practical applications of topological photonics.
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