Playing the notes of DNA with light: extremely high frequency nanomechanical oscillations.

@article{Kotnala2015PlayingTN,
  title={Playing the notes of DNA with light: extremely high frequency nanomechanical oscillations.},
  author={Abhay Kotnala and Skylar Wheaton and Reuven Gordon},
  journal={Nanoscale},
  year={2015},
  volume={7 6},
  pages={
          2295-300
        }
}
We use a double nanohole (DNH) optical tweezer with two trapping lasers beating to excite the vibrational modes of single-stranded DNA (ssDNA) fragments in the extremely high frequency range. We find the resonant vibration frequency of a 20 base ssDNA to be 40 GHz. We show that the change in the resonant frequency for different lengths of the DNA strand is in good agreement with one dimensional lattice vibration theory. Thus the DNH tweezer system could distinguish between different lengths of… 
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