Optomechanics

Optomechanics is the use of laser light to control the motion of mechanical vibrations, usually micrometre- or nanometre-scale resonators. As well as probing micromechanical motion, light can also remove energy from the system. In this way, an oscillator can reach the quantum limit with just one quantum of vibration energy, or phonon.

Latest Research and Reviews

  • Research |

    Transduction of valley information to mechanical states in a monolayer MoS2 resonator can be realized by optically pumping the valley carriers and applying an out-of-plane magnetic field gradient to induce a displacement-dependent valley splitting.

    • Hao-Kun Li
    • , King Yan Fong
    • , Hanyu Zhu
    • , Quanwei Li
    • , Siqi Wang
    • , Sui Yang
    • , Yuan Wang
    •  & Xiang Zhang
    Nature Photonics 13, 397-401
  • Research | | open

    Measurements of motion that avoid quantum backaction, with the potential to surpass the standard quantum limit, have so far been demonstrated using microwave radiation. Here, Shomroni, Qiu et al. demonstrate a backaction-evading measurement of the motion of a nanomechanical beam using laser light.

    • Itay Shomroni
    • , Liu Qiu
    • , Daniel Malz
    • , Andreas Nunnenkamp
    •  & Tobias J. Kippenberg
  • Research |

    An electromechanical transducer that integrates a high-frequency phononic crystal with a superconducting microwave circuit enables transduction of hypersonic mechanical motion at the quantum level.

    • Mahmoud Kalaee
    • , Mohammad Mirhosseini
    • , Paul B. Dieterle
    • , Matilda Peruzzo
    • , Johannes M. Fink
    •  & Oskar Painter
    Nature Nanotechnology 14, 334-339
  • Research |

    The thermal vibrations of a carbon nanotube are directly measured in real time with high displacement sensitivity and fine time resolution, revealing dynamics undetected by previous time-averaged measurements.

    • Arthur W. Barnard
    • , Mian Zhang
    • , Gustavo S. Wiederhecker
    • , Michal Lipson
    •  & Paul L. McEuen
    Nature 566, 89-93

News and Comment

  • News and Views |

    High-amplitude optical phase modulation has been challenging to achieve in nanophotonic integrated structures. Coherently combining multiple optomechanical modulators on a nanophotonic chip offers an approach to address this challenge.

    • Michał Karpiński
    Nature Photonics 13, 306-308
  • News and Views |

    A nanoelectromechanical system made from a nanobeam embedded in a phononic crystal and coupled to a pair of superconducting microwave oscillators can couple hypersonic sound quanta at 0.425 GHz and light quanta with high coherence.

    • Guido Burkard
    Nature Nanotechnology 14, 311-312
  • News and Views |

    Spin-dependent lateral optical forces, 100,000 times larger than those reported so far, can lead to displacements of centimetre-sized objects observable by the naked eye.

    • Jorge Olmos-Trigo
    •  & Juan José Sáenz
    Nature Photonics 12, 444-445