Anno2010
AutoriPini V, Tiribilli B, Gambi CMC, Vassalli M,
AbstractThe detailed characterization of the dynamical behavior of an oscillating cantilever is a crucial task in many applications of scanning probe microscopy, force spectroscopy, and cantilever based biosensors. In the present work we considered a direct and localized excitation of the cantilever obtained using the photothermal effect induced by a modulated laser beam that allows us to completely separate the dynamics of the system from spurious effects. We developed a theoretical model able to describe the experimental results with high accuracy; in particular, a good agreement is achieved, both for amplitude and phase, in the presence of resonances and antiresonances, depending on the different location of the excitation beam.
RivistaPhysical Review B
ISSN
Impact factor
Volume81
Pagina inizio054302
Pagina fine
Autori IBFMassimo VASSALLI
Linee di Ricerca IBFMD.P01.001.001
Sedi IBFIBF.GE