We demonstrate the emission of photons from a single molecule into a hybrid gap plasmon waveguide (HGPW). Crystals of anthracene, doped with dibenzoterrylene (DBT), are grown on top of the waveguides. We investigate a single DBT molecule coupled to the plasmonic region of one of the guides, and determine its in-plane orientation, excited state lifetime and saturation intensity. The molecule emits light into the guide, which is remotely out-coupled by a grating. The second-order auto-correlation and cross-correlation functions show that the emitter is a single molecule and that the light emerging from the grating comes from that molecule. The coupling efficiency is found to be βWG=11.6(1.5)%. This type of structure is promising for building new functionality into quantum-photonic circuits, where localised regions of strong emitter-guide coupling can be interconnected by low-loss dielectric guides.
@article{arxiv.1905.06321,
title = {Hybrid plasmonic waveguide coupling of photons from a single molecule},
author = {Samuele Grandi and Michael P. Nielsen and Javier Cambiasso and Sebastien Boissier and Kyle D. Major and Christopher Reardon and Thomas F. Krauss and Rupert F. Oulton and E. A. Hinds and Alex S. Clark},
journal= {arXiv preprint arXiv:1905.06321},
year = {2019}
}