Coupling Nanomechanical Cantilevers to Dipolar Molecules

Nonlinearity in nanomechanical cantilevers

L. G. Villanueva,1,2 R. B. Karabalin,1 M. H. Matheny,1 D. Chi,1 J. E. Sader,1,3 and M. L. Roukes1 1Kavli Nanoscience Institute and Departments of Physics, Applied Physics, and Bioengineering, California Institute of Technology, Pasadena, California 91125, USA 2Department of Microand Nanotechnology, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark 3Department of Mathematics and S...

Nanomechanical humidity detection through porous alumina cantilevers

We present here the behavior of the resonance frequency of porous anodic alumina cantilever arrays during water vapor adsorption and emphasize their possible use in the micromechanical sensing of humidity levels at least in the range of 10-22%. The sensitivity of porous anodic aluminium oxide cantilevers (Δf/Δm) and the humidity sensitivity equal about 56 Hz/pg and about 100 Hz/%, respectively....

Dynamic interactions between oscillating cantilevers: Nanomechanical modulation using surface forces

Nanomechanical Sensor Platform Based On Piezo-Resistive Cantilevers

This paper presents Cantion’s cantilever-based bio/chemical sensor. The cantilevers have integrated readout and can be used both in liquids and gases. The sensing principle is based on a cantilever bending due to a change in surface stress. Such surface-stress change is obtained during molecular interaction which has made it possible to measure DNA hybridization, antigen-antibody interactions e...

Decelerating Neutral Dipolar Molecules

Slowing down atoms using laser cooling, together with techniques like magnetic trapping and evaporative cooling, has led to numerous exciting results over the last decade [1], with the realization of Bose-Einstein condensation as the most spectacular achievement [2]. Laser-cooling schemes are applicable to atoms since closed multilevel systems can be realized and many consecutive absorptionemis...