An Improved Photoinduced Model for Silicon Based Microcantilever

Saxena, Pawan

doi:10.1166/jno.2010.1123

Cited by 2 publications

(1 citation statement)

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“…Because of the many applications of laser beam deflection measurement of a microcantilever a number of studies have explored how the laser spot may change the mechanical properties of the cantilever [1][2][3][4] and affect the accuracy of its vibrational frequency measurement. 5,6 It is known that Joule heating, via both a temperature dependent Young's modulus and thermal expansion, shifts the vibrational frequency to the red for silicon and silicon nitride.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of impurity attraction and repulsion of an intrinsic localized mode in a driven 1-D cantilever array

Satō

Sada

Shi

et al. 2015

Chaos

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Both low frequency and high frequency impurity modes have been produced in a SiN micromechanical cantilever array by illumination with either an infrared or visible laser. When such laser-induced impurities are placed near a driven intrinsic localized mode (ILM) it is either repelled or attracted. By measuring the linear response spectrum for these two cases it was found that vibrational hopping of the ILM takes place when the natural frequency of the ILM and an even symmetry linear local mode are symmetrically located about the driven ILM frequency so that parametric excitation of these two linear modes is enhanced, amplifying the lateral motion of the ILM. Numerical simulations are consistent with these signature findings. It is also demonstrated that the correct sign of the observed interaction can be found with a harmonic lattice-impurity model but the magnitude of the effect is enhanced in a nonlinear lattice.

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Section: Introductionmentioning

confidence: 99%