Microscale application of column theory for high resolution force and displacement sensing

Details Microscale application of column theory for high resolution force and displacement sensing Microscale application of column theory for high resolution force and displacement sensing

2004-12-15

arxiv.org/abs/physics/0412089v1

Physics

Instrumentation and Detectors

Scientific paper

10.1063/1.1989440

We present the design, fabrication and experimental validation of a novel device that exploits the amplification of displacement and attenuation of structural stiffness in the post-buckling deformation of slender columns to obtain pico-Newton force and nanometer displacement resolution even under an optical microscope. The extremely small size, purely mechanical sensing scheme and vacuum compatibility of the instrument makes it compatible with existing visualization tools of nanotechnology. The instrument has a wide variety of potential applications ranging from electro-mechanical characterization of one dimensional solids to single biological cells.

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