In multifrequency atomic force microscopy higher eigenmodes are externally excited to enhance resolution and contrast while simultaneously increasing the number of experimental observables with the use of gentle forces. Here, the implications of externally exciting multiple frequencies are discussed in terms of cantilever anharmonicity, fundamental period and the onset of subharmonic and superh...

This paper addresses the problem of detecting collisions of very flexible objects, such as clothes with almost rigid bodies, such as human bodies. In our method, collision avoidance consists of creating a very thin force field around the obstacle surface to avoid collisions. This force field acts like a shield rejecting the points. This volume is divided into small contiguous non-overlapped cel...

Numerous dynamic atomic force microscopy (AFM) methods have appeared in recent years, which make use of the excitation and detection of higher order eigenmodes of the microcantilever. The ability to control these modes and their responses to excitation is believed to be the key to unraveling the true potential of these methods. In this paper, we highlight a multimode Q control method that exhib...

The CF3S radical has been investigated using the LIF and fluorescence depletion techniques. The vibrational structure of the first excited à A1 state has been assigned. The photodissociation process at energies above the origin of the à state has been characterized by fluorescence temporal decay and fluorescence depletion spectroscopy. Above the photodissociation threshold the ratio of the rate...

“What – if” analyses of the interfacial component of nanocrystalline materials (NCM), especially at higher temperatures, were performed using a two-dimensional model. What influence would thermal excitations have on the pair distribution function, the vibrational spectra and the specific heat, over the temperature range of 30–1200 K, if the NCM would be stable over this temperature range, i.e. ...