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. Author manuscript; available in PMC: 2017 Jan 7.
Published in final edited form as: Nature. 2016 Jul 7;535(7610):127–130. doi: 10.1038/nature17974

Figure 1. Comparing single molecule optical cavities.

Figure 1

a, Cavity Q-factors and effective volumes (compared to Vλ = (λ/n)3), showing strong-coupling (green), room-temperature (blue), and plasmonic (orange) regimes for single emitters. Icons (from right) show whispering gallery sphere, microdisk, photonic crystal, micropillar, and nanoparticle on mirror geometry (NPoM), with Purcell factor P (red) in µm−3. b, Schematic of NPoM, blue arrow in gap locates emitter transition dipole moment. Inset: simulated near-field of coupled gap plasmon in dashed box with maximum electric field enhancement ∼400, oriented vertically (z).