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. 2018 Sep 12;7:61. doi: 10.1038/s41377-018-0062-5

Fig. 6. Efficiency of the GeV-DLSPPW platform compared with other hybrid quantum systems.

Fig. 6

a Simulated plasmonic decay rate (Γpl/Γ0) for the DLSPPW coupled GeV centre. Inset shows the cross section of a y-oriented dipole emitter inside the DLSPP waveguide (top right). b Distribution profile of the β-factor, i.e. Γpl/Γtot, for a distribution of the GeV centre inside a nanodiamond, where each coloured square represents the central value of the corresponding in-plane dipole position. c Figure-of-merit (FOM) and transmission length of hybrid quantum plasmonic systems. The FOM of GeV–DLSPPW on the Ag crystal is compared with other demonstrated quantum emitter-plasmonic waveguide (QE-PW) hybrid systems, including quantum dot-Ag nanowire (QD-NW)16, NV-Gap Ag nanowire (NV-GapNW)20, NV-V groove channel waveguides (NV-VG)21, QD-Wedge waveguides (QD-wedge)22 and NV–DLSPPW on a Ag film23. The black diamond markers in the graph are extracted from the experimental results reported for the corresponding hybrid systems