Fig. 2.
(A) Trajectory of an inelastically scattering gold nanoparticle (GNP) in the (x’,y’,z’) coordinate system in a 3D tracking measurement. The GNP was deliberately moved along a Lissajous figure trajectory using the sample stage. Coordinate transformation to the laboratory system (x,y,z) reveals the actual 3D trajectory. (B) Distribution of photon numbers among the three exposures used for MINFLUX localization, shown for localization along the x’, y’ and z’ axis and with the pertinent signal-to-background ratio. (C) Histograms of position differences between two consecutive measurements in the laboratory system demonstrating short-term localization precision at Ångström scale at a 3D detection rate of .