Plasmonic nanoantennas for SERS, directional light, sensing and strong coupling

Abstract

In this paper we discuss several examples of generating directional light emission on a nanoscale as well as utilization of these results for color routing, sensing and strong coupling applications. Examples include propagating plasmons in metallic nanowires, spontaneous formation of optical phase mismatch in materially asymmetric silver-gold and palladium-gold dimers and exciton-induced transparency in individual silver nanorods covered by a thin layer of J-aggregates.