Method and device for the contactless excitation of torsional vibrations in a cantilever clamped cantilever of an atomic force microscope

摘要

A method is described for the excitation of free torsional vibrations in a cantilever beam of an atomic force microscope (RKM) that is clamped on one side and has a longitudinal extension. DOLLAR A The invention is characterized in that the cantilevered cantilever is arranged spaced apart over a surface between which and the cantilever an acoustic coupling medium is present, DOLLAR A that the surface shifts vibrations that are laterally oriented and linearly polarized along an oscillation direction and DOLLAR A that the polarization axis predetermined by the direction of vibration is oriented perpendicular to the longitudinal extension of the cantilever.