A simple and accurate method for calibrating the oscillation amplitude of tuning-fork based AFM sensors
We have developed a simple and accurate method for calibrating the amplitude of vibration of quartz tuning fork sensors commonly used in at. force- and near field optical-microscopy. Unlike interferometric methods, which require a complex optical setup, the method we present requires only a simple measurement of the electro-mech. properties of the tuning-fork oscillator and can be performed in a matter of minutes without disturbing the exptl. setup. Comparison with interferometric methods shows that an accuracy of better than few percent can be routinely achieved.
Optical, Electron, and Mass Spectroscopy and Other Related Properties
Laboratoire de Spectroscopie Ultrarapide,Ecole Polytechnique Federale de Lausanne (EPFL),Lausanne,Switz.
written in English.
Record created on 2009-03-18, modified on 2016-08-08