UCL Discovery Stage
UCL home » Library Services » Electronic resources » UCL Discovery Stage

Imaging-based feedback cooling of a levitated nanoparticle

Minowa, Y; Kato, K; Ueno, S; Penny, TW; Pontin, A; Ashida, M; Barker, PF; (2022) Imaging-based feedback cooling of a levitated nanoparticle. Review of Scientific Instruments , 93 (7) , Article 075109. 10.1063/5.0095614. Green open access

[thumbnail of 5.0095614.pdf]
Preview
Text
5.0095614.pdf - Published Version

Download (4MB) | Preview

Abstract

Imaging-based detection of the motion of levitated nanoparticles complements a widely used interferometric detection method, providing a precise and robust way to estimate the position of the particle. Here, we demonstrate a camera-based feedback cooling scheme for a charged nanoparticle levitated in a linear Paul trap. The nanoparticle levitated in vacuum was imaged using a complementary metal-oxide semiconductor (CMOS) camera system. The images were processed in real-time with a microcontroller integrated with a CMOS image sensor. The phase-delayed position signal was fed back to one of the trap electrodes, resulting in cooling by velocity damping. Our study provides a simple and versatile approach applicable for the control of low-frequency mechanical oscillators.

Type: Article
Title: Imaging-based feedback cooling of a levitated nanoparticle
Open access status: An open access version is available from UCL Discovery
DOI: 10.1063/5.0095614
Publisher version: https://doi.org/10.1063/5.0095614
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL
URI: https://discovery-pp.ucl.ac.uk/id/eprint/10152246
Downloads since deposit
893Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item