Non-Hermitian topological light steering
University of Pennsylvania · Istituto di Fotonica e Nanotecnologie · +1 more institution
Abstract
Photonic topological insulators provide a route for disorder-immune light transport, which holds promise for practical applications. Flexible reconfiguration of topological light pathways can enable high-density photonics routing, thus sustaining the growing demand for data capacity. By strategically interfacing non-Hermitian and topological physics, we demonstrate arbitrary, robust light steering in reconfigurable non-Hermitian junctions, in which chiral topological states can propagate at an interface of the gain and loss domains. Our non-Hermitian-controlled topological state can enable the dynamic control of robust transmission links of light inside the bulk, fully using the entire footprint of a photonic…
Citation impact
- FWCI
- 31.69
- Percentile
- 100%
- References
- 32
Authors
6Topics & keywords
- Hermitian matrix
- Topology (electrical circuits)
- Physics
- Mathematics
- Pure mathematics
- Combinatorics