Ultrasensitive torque detection with an optically levitated nanorotor

@article{Ahn2020UltrasensitiveTD,
  title={Ultrasensitive torque detection with an optically levitated nanorotor},
  author={Jonghoon Ahn and Zhujing Xu and Jaehoon Bang and Peng Ju and X. Gao and T. Li},
  journal={Nature Nanotechnology},
  year={2020},
  volume={15},
  pages={89-93}
}
Torque sensors such as the torsion balance enabled the first determination of the gravitational constant by Henri Cavendish 1 and the discovery of Coulomb’s law. Torque sensors are also widely used in studying small-scale magnetism 2 , 3 , the Casimir effect 4 and other applications 5 . Great effort has been made to improve the torque detection sensitivity by nanofabrication and cryogenic cooling. Until now, the most sensitive torque sensor has achieved a remarkable sensitivity of 2.9 × 10 −24… Expand
29 Citations
6 GHz hyperfast rotation of an optically levitated nanosphere in vacuum
  • PDF
Robust Optical-Levitation-Based Metrology of Nanoparticle's Position and Mass.
  • 5
  • PDF
Thermal radiation spin torque on magneto-optical media.
...
1
2
3
...

References

SHOWING 1-10 OF 64 REFERENCES
Optically driven ultra-stable nanomechanical rotor
  • 48
  • PDF
Optically Levitated Nanodumbbell Torsion Balance and GHz Nanomechanical Rotor.
  • 79
  • PDF
Torsional Optomechanics of a Levitated Nonspherical Nanoparticle.
  • 101
  • PDF
Nanocavity optomechanical torque magnetometry and radiofrequency susceptometry.
  • 37
  • PDF
Approaching the standard quantum limit of mechanical torque sensing
  • 37
  • PDF
...
1
2
3
4
5
...