Enhanced efficiency in the excitation of higher modes for atomic force microscopy and mechanical sensors operated in liquids

• DOI: 10.1063/1.4900411
• Publication Date: 2014-10-28T00:30:27Z
• Authors: M. Penedo; A. Raman; S. Hormeño; I. Fernández-Mart...; M. Luna; F. Briones
• Keywords: 02 engineering and technology; 0210 nano-technology

Recent developments in dynamic Atomic Force Microscopy where several eigenmodes are simultaneously excited liquid media proving to be an excellent tool biological studies. Despite its relevance, the search for a reliable, efficient, and strong cantilever excitation method is still progress. Herein, we present theoretical modeling experimental results of different actuation methods compatible with operation environments: ideal acoustic, homogeneously distributed force, applied torque (MAC Mode™), photothermal magnetostrictive excitation. From analysis results, it can concluded that magnetostriction strongest most efficient technique higher eigenmode when using soft cantilevers media.