Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope

Yoshihiko Arita; Stephen Simpson; Graham David Bruce; Ewan Malcolm Wright; Academy of sciences of cz; Kishan Dholakia

doi:10.1038/s42005-023-01336-4

Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope

Yoshihiko Arita, Stephen Simpson, Graham David Bruce, Ewan Malcolm Wright, Academy of sciences of cz, Kishan Dholakia^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Birefringent microspheres, trapped in vacuum and set into rotation by circularly polarised light, demonstrate remarkably stable translational motion. This is in marked contrast to isotropic particles in similar conditions. Here we demonstrate that this stability is obtained because the fast rotation of these birefringent spheres reduces the effect of azimuthal spin forces created by the inhomogeneous optical spin of circularly polarised light. At reduced pressures, the unique profile of these rotationally averaged, effective azimuthal forces results in the formation of nano-scale limit cycles. We demonstrate feedback cooling of these non-equilibrium oscillators, resulting in effective temperatures on the order of a milliKelvin. The principles we elaborate here can inform the design of high-stability rotors carrying enhanced centripetal loads or result in more efficient cooling schemes for autonomous limit cycle oscillations. Ultimately, this latter development could provide experimental access to non-equilibrium quantum effects within the mesoscopic regime.

Original language	English
Article number	238
Number of pages	7
Journal	Communications Physics
Volume	6
DOIs	https://doi.org/10.1038/s42005-023-01336-4
Publication status	Published - 1 Sept 2023

Access to Document

10.1038/s42005-023-01336-4Licence: CC BY

Arita_2023_CP_Cooling-optical-spin_CC
Copyright © The Author(s) 2023. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Final published version, 1.61 MBLicence: CC BY

1 Finished

Resonant and shaped photonics for under: Resonant and shaped photonics for understanding the physical and biomedical world
Dholakia, K. (PI) & Gather, M. C. (CoI)
1/08/17 → 31/07/22
Project: Standard

Data underpinning "Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope"
Arita, Y. (Creator), Simpson, S. (Creator), Bruce, G. D. (Creator), Wright, E. (Creator), Zemanek, P. (Creator) & Dholakia, K. (Creator), University of St Andrews, 15 Apr 2024
DOI: 10.17630/54fd540e-dad6-450d-80a2-f436af2cc631
Dataset

1 Preprint

Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope
Arita, Y., Simpson, S. H., Bruce, G. D., Wright, E. M., Zemánek, P. & Dholakia, K., 14 Apr 2022, 20 p.
Research output: Working paper › Preprint

Cite this

@article{35b3be28796f4527a4a87ac566618dae,

title = "Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope",

abstract = "Birefringent microspheres, trapped in vacuum and set into rotation by circularly polarised light, demonstrate remarkably stable translational motion. This is in marked contrast to isotropic particles in similar conditions. Here we demonstrate that this stability is obtained because the fast rotation of these birefringent spheres reduces the effect of azimuthal spin forces created by the inhomogeneous optical spin of circularly polarised light. At reduced pressures, the unique profile of these rotationally averaged, effective azimuthal forces results in the formation of nano-scale limit cycles. We demonstrate feedback cooling of these non-equilibrium oscillators, resulting in effective temperatures on the order of a milliKelvin. The principles we elaborate here can inform the design of high-stability rotors carrying enhanced centripetal loads or result in more efficient cooling schemes for autonomous limit cycle oscillations. Ultimately, this latter development could provide experimental access to non-equilibrium quantum effects within the mesoscopic regime.",

author = "Yoshihiko Arita and Stephen Simpson and Bruce, {Graham David} and Wright, {Ewan Malcolm} and cz, {Academy of sciences of} and Kishan Dholakia",

note = "Funding: Acknowledgements Engineering and Physical Sciences Research Council (EP/P030017/1); Australian Research Council (DP220102303); Akademie vĕd {\v C}esk{\'e} republiky (Praemium Academiae); Ministerstvo {\v S}kolstv{\'i}, Ml{\'a}de{\v z}e a T{\v e}lov{\'y}chovy (CZ.02.1.01/0.0/0.0/15 003/0000476).",

year = "2023",

month = sep,

day = "1",

doi = "10.1038/s42005-023-01336-4",

language = "English",

volume = "6",

journal = "Communications Physics",

issn = "2399-3650",

publisher = "Nature publishing group",

}

TY - JOUR

T1 - Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope

AU - Arita, Yoshihiko

AU - Simpson, Stephen

AU - Bruce, Graham David

AU - Wright, Ewan Malcolm

AU - cz, Academy of sciences of

AU - Dholakia, Kishan

N1 - Funding: Acknowledgements Engineering and Physical Sciences Research Council (EP/P030017/1); Australian Research Council (DP220102303); Akademie vĕd České republiky (Praemium Academiae); Ministerstvo Školství, Mládeže a Tělovýchovy (CZ.02.1.01/0.0/0.0/15 003/0000476).

PY - 2023/9/1

Y1 - 2023/9/1

N2 - Birefringent microspheres, trapped in vacuum and set into rotation by circularly polarised light, demonstrate remarkably stable translational motion. This is in marked contrast to isotropic particles in similar conditions. Here we demonstrate that this stability is obtained because the fast rotation of these birefringent spheres reduces the effect of azimuthal spin forces created by the inhomogeneous optical spin of circularly polarised light. At reduced pressures, the unique profile of these rotationally averaged, effective azimuthal forces results in the formation of nano-scale limit cycles. We demonstrate feedback cooling of these non-equilibrium oscillators, resulting in effective temperatures on the order of a milliKelvin. The principles we elaborate here can inform the design of high-stability rotors carrying enhanced centripetal loads or result in more efficient cooling schemes for autonomous limit cycle oscillations. Ultimately, this latter development could provide experimental access to non-equilibrium quantum effects within the mesoscopic regime.

AB - Birefringent microspheres, trapped in vacuum and set into rotation by circularly polarised light, demonstrate remarkably stable translational motion. This is in marked contrast to isotropic particles in similar conditions. Here we demonstrate that this stability is obtained because the fast rotation of these birefringent spheres reduces the effect of azimuthal spin forces created by the inhomogeneous optical spin of circularly polarised light. At reduced pressures, the unique profile of these rotationally averaged, effective azimuthal forces results in the formation of nano-scale limit cycles. We demonstrate feedback cooling of these non-equilibrium oscillators, resulting in effective temperatures on the order of a milliKelvin. The principles we elaborate here can inform the design of high-stability rotors carrying enhanced centripetal loads or result in more efficient cooling schemes for autonomous limit cycle oscillations. Ultimately, this latter development could provide experimental access to non-equilibrium quantum effects within the mesoscopic regime.

U2 - 10.1038/s42005-023-01336-4

DO - 10.1038/s42005-023-01336-4

M3 - Article

SN - 2399-3650

VL - 6

JO - Communications Physics

JF - Communications Physics

M1 - 238

ER -

Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope

Abstract

Access to Document

Fingerprint

Projects

Resonant and shaped photonics for under: Resonant and shaped photonics for understanding the physical and biomedical world

Datasets

Data underpinning "Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope"

Research output

Cooling the optical-spin driven limit cycle oscillations of a levitated gyroscope

Cite this