期刊
NEW JOURNAL OF PHYSICS
卷 18, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/18/11/113013
关键词
topological photonics; photonic waveguide; photonic crystal
资金
- Air Force Office of Scientific Research-Multidisciplinary University Research Initiative Sloan Foundation
- Office of Naval Research
- Physics Frontier Center at the Joint Quantum Institute
- NSF [PHY11-25915]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1430094] Funding Source: National Science Foundation
We present an all-dielectric photonic crystal structure that supports two-dimensionally confined helical topological edge states. The topological properties of the system are controlled by the crystal parameters. An interface between two regions of differing band topologies gives rise to topological edge states confined in a dielectric slab that propagate around sharp corners without backscattering. Three-dimensional finite-difference time-domain calculations show these edges to be confined in the out-of-plane direction by total internal reflection. Such nanoscale photonic crystal architectures could enable strong interactions between photonic edge states and quantum emitters.
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