News

ACS Nano publication: Shedding Light on Axial Stress Effect on Resonance Frequencies of Nanocantilevers

In this paper we show that the detection back-action phenomenon is very significant in ultrathin bimetallic cantilevers, in which the laser beam that probes the picometer scale vibration largely modifies the resonant frequencies of the system. We demonstrate that this effect arises from the stress and strain generated by the laser heating. The experiments are explained by two-dimensional nonlinear elasticity theory and supported by finite element simulations. The found phenomenology is intimately connected to the old unsolved problem about the effect of surface stress on the resonance frequency of singly clamped beams.


Source:

Latest Posts

  • Rei Jaume I Awards Ceremony

    The King and Queen of Spain, Felipe VI and Letizia, presented the Rei Jaume I Awards at the Lonja de València. Before, a tribute to the figure of the scientist Santiago Grisolía, its founder, was held. The ceremony was also attended for the first time by two Nobel Prize winners, Finn E. Kydland and Roger…

Micro and Nanotechnology Institute
PTM – C/Isaac Newton, 8
28760 – Tres Cantos – MADRID
Tfn. (+ 34) 91 806 07 00
Fax. (+ 34) 91 806 07 01

Follow us