Ultrafast spectroscopy of super high frequency mechanical modes of doubly clamped beams

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Applied Physics Letters. 2013, 103(23), 233114. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4844775
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We use ultrafast pump-probe spectroscopy to study the mechanical vibrations in the time domain of doubly clamped silicon nitride beams. Beams with two different clamping conditions are investigated. Finite element method calculations are performed to analyse the mode spectra of both structures. By calculating the strain integral on the surface of the resonators, we are able to reproduce the effect of the detection mechanism and identify all the measured modes. We show that our spectroscopy technique combined with our modelling tools allow the investigation of several different modes in the super high frequency range (3-30 GHz) and above, bringing more information about the vibration modes of nanomechanical resonators.

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ISO 690RISTOW, Oliver, Moritz MERKLEIN, Martin GROSSMANN, Mike HETTICH, Martin SCHUBERT, Axel BRUCHHAUSEN, Jochen GREBING, Artur ERBE, Denis MOUNIER, Vitalyi GUSEV, Elke SCHEER, Thomas DEKORSY, Elaine BARRETTO, 2013. Ultrafast spectroscopy of super high frequency mechanical modes of doubly clamped beams. In: Applied Physics Letters. 2013, 103(23), 233114. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4844775
BibTex
@article{Ristow2013Ultra-25652,
  year={2013},
  doi={10.1063/1.4844775},
  title={Ultrafast spectroscopy of super high frequency mechanical modes of doubly clamped beams},
  number={23},
  volume={103},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Ristow, Oliver and Merklein, Moritz and Grossmann, Martin and Hettich, Mike and Schubert, Martin and Bruchhausen, Axel and Grebing, Jochen and Erbe, Artur and Mounier, Denis and Gusev, Vitalyi and Scheer, Elke and Dekorsy, Thomas and Barretto, Elaine},
  note={Article Number: 233114}
}
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