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Laser-induced rotation and cooling of a trapped microgyroscope in vacuum

Author

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  • Yoshihiko Arita

    (SUPA, School of Physics & Astronomy, University of St Andrews, North Haugh, St Andrews)

  • Michael Mazilu

    (SUPA, School of Physics & Astronomy, University of St Andrews, North Haugh, St Andrews)

  • Kishan Dholakia

    (SUPA, School of Physics & Astronomy, University of St Andrews, North Haugh, St Andrews)

Abstract

Quantum state preparation of mesoscopic objects is a powerful playground for the elucidation of many physical principles. The field of cavity optomechanics aims to create these states through laser cooling and by minimizing state decoherence. Here we demonstrate simultaneous optical trapping and rotation of a birefringent microparticle in vacuum using a circularly polarized trapping laser beam—a microgyroscope. We show stable rotation rates up to 5 MHz. Coupling between the rotational and translational degrees of freedom of the trapped microgyroscope leads to the observation of positional stabilization in effect cooling the particle to 40 K. We attribute this cooling to the interaction between the gyroscopic directional stabilization and the optical trapping field.

Suggested Citation

  • Yoshihiko Arita & Michael Mazilu & Kishan Dholakia, 2013. "Laser-induced rotation and cooling of a trapped microgyroscope in vacuum," Nature Communications, Nature, vol. 4(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3374
    DOI: 10.1038/ncomms3374
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    Cited by:

    1. Ruoqin Zhang & Xichuan Zhao & Jinzhi Li & Di Zhou & Honglian Guo & Zhi-yuan Li & Feng Li, 2024. "Programmable photoacoustic patterning of microparticles in air," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. Xiao Li & Yineng Liu & Zhifang Lin & Jack Ng & C. T. Chan, 2021. "Non-Hermitian physics for optical manipulation uncovers inherent instability of large clusters," Nature Communications, Nature, vol. 12(1), pages 1-9, December.

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