Abstract

Topological photonics is a burgeoning subfield of optics, inspired by the discovery of topological insulators in condensed matter [1]. A striking feature of such materials is the existence of edge modes robust against disorder. Such modes are particularly attractive for chip-scale nanophotonic systems for telecommunications [2]. Another appeal is that directional edge states can be interfaced with quantum emitters to realize novel many-body systems such as the fractional quantum Hall state [3]. Building upon previous work [4], we present a new design for an all-dielectric nanoscale topological photonic crystal and present experimental results consistent with the existence of edge states.

© 2017 Japan Society of Applied Physics, Optical Society of America