Table 2 Fluorescence photokinetic rates inside DNH: Γrad radiative rate, Γloss non-radiative transitions to the metal, Γnr intramolecular non-radiative transitions, Γq methyl viologen quenching rate, Γtot total decay rate (inverse of fluorescence lifetime), ϕ quantum yield.

From: Nanoscale volume confinement and fluorescence enhancement with double nanohole aperture

  Γrad Γloss Γnr Γq Γtot ϕ
Confocal 0.21 0.67 1.75 2.63 0.08
DNH perpendicular 0.84 0.31 0.67 1.75 3.57 0.24
DNH parallel 2.94 2.97 0.67 1.75 8.33 0.35
  1. All rates are expressed in ns−1, the typical uncertainty is ±0.05 ns−1.