Abstract
We present the first experimental demonstration of a new type of localized state in the continuum, namely, compacton-like linear states in flat-band lattices. To this end, we employ photonic Lieb lattices, which exhibit three tight-binding bands, with one being perfectly flat. Discrete predictions are confirmed by realistic continuous numerical simulations as well as by direct experiments. Our results could be of great importance for fundamental physics as well as for various applications where light needs to be conducted in a diffractionless and localized manner over long distances.
- Received 9 December 2014
DOI:https://doi.org/10.1103/PhysRevLett.114.245503
© 2015 American Physical Society
Viewpoint
ViewpointTrapped in a Photonic Maze
Published 15 June 2015
Strong confinement of light in crystalline structures known as Lieb lattices opens up routes to developing new light-trapping schemes.
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