Thermal noise of microcantilevers in viscous fluids

Simple item page
dc.creatorBellon, Ludovic
dc.date2008-11-20
dc.date.accessioned2026-07-07T10:20:27Z
dc.date.available2026-07-07T10:20:27Z
dc.descriptionWe present a simple theoretical framework to describe the thermal noise of a microscopic mechanical beam in a viscous fluid: we use the Sader approach to describe the effect of the surrounding fluid (added mass and viscous drag), and the fluctuation dissipation theorem for each flexural modes of the system to derive a general expression for the power spectrum density of fluctuations. This prediction is compared with an experimental measurement on a commercial atomic force microscopy cantilever in a frequency range covering the two first resonances. A very good agreement is found on the whole spectrum, with no adjustable parameters but the thickness of the cantilever.
dc.identifierhttps://arxiv.org/abs/0811.3429
dc.identifierhttp://arxiv.org/abs/0811.3429
dc.identifierJournal of Applied Physics 104 (2008) 104906
dc.identifierdoi:10.1063/1.3021102
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/174854
dc.subjectClassical Physics
dc.subjectStatistical Mechanics
dc.titleThermal noise of microcantilevers in viscous fluids
dc.typetext

Files

Collections

arXiv