1 article(s) from Mensch, Philipp
Figure 1: Contributions of apex, cone, and cantilever to the first (AM, left) and second (FM, right) order ca...
Figure 2: a) Sideband amplitude (blue) and phase (red) relative to the carrier oscillation measured during a ...
Figure 3: In-phase (red) and quadrature (blue) sideband amplitudes, normalised to the carrier oscillation amp...
Figure 4:
Modulation indices of the sidebands at ωm (a) and 2ωm (b) against for different modulation amplitu...
Figure 5: Block diagram of a Kelvin controller based on a) a proportional–integral–differential (PID) control...
Figure 6: Closed-loop response of the Kelvin observer (black) and a proportional-integral controller (red) to...
Figure 7: Normalised closed-loop bandwidth (−3 dB) of the steady-state Kelvin observer as a function of the n...
Figure 8: Schematic of the modified KFM setup. For topography feedback, the cantilever is excited at a consta...
Figure 9: a) Topography, b) tip–sample capacitance gradient, C'', and c) local contact potential difference, U...
Figure 10: a), b) Kelvin and c), d) error signal of an InAs nanowire similar to the device shown in Figure 9, measured...
Figure 11: One-dimensional power spectral densities of the error signals in Figure 10c,d. Integral feedback works well a...