The University of Southampton
University of Southampton Institutional Repository

Direct measurement of the electrostatic image force of a levitated charged nanoparticle close to a surface

Direct measurement of the electrostatic image force of a levitated charged nanoparticle close to a surface
Direct measurement of the electrostatic image force of a levitated charged nanoparticle close to a surface

We report on optical levitation experiments to probe the interaction of a nanoparticle with a surface in vacuum. The observed interaction-induced effect is a controllable anharmonicity of the particle trapping potential. We reconstruct the Coulomb image charge interaction potential to be in perfect agreement with the experimental data for a particle carrying Q=-(11±1)e elementary charges and compare the measured electrostatic interaction with the weaker dispersive forces from theory. Our experimental results may open the route for a new surface sensitive scanning probe technique based on the high mechanical sensitivity of levitated nanoparticles.

2469-9926
Winstone, George
a2280720-4c80-43d7-97d0-85666ee4a1e5
Bennett, Robert
7f2a031b-5d4c-4112-a451-440c9460e169
Rademacher, Markus
5dfd9bd3-3e76-4e94-96a8-71a79a7814f3
Rashid, Muddassar
2d80257f-bf01-4710-8752-6b50165b747b
Buhmann, Stefan
77839719-56bf-48c1-869f-4313c2ec0f46
Ulbricht, Hendrik
5060dd43-2dc1-47f8-9339-c1a26719527d
Winstone, George
a2280720-4c80-43d7-97d0-85666ee4a1e5
Bennett, Robert
7f2a031b-5d4c-4112-a451-440c9460e169
Rademacher, Markus
5dfd9bd3-3e76-4e94-96a8-71a79a7814f3
Rashid, Muddassar
2d80257f-bf01-4710-8752-6b50165b747b
Buhmann, Stefan
77839719-56bf-48c1-869f-4313c2ec0f46
Ulbricht, Hendrik
5060dd43-2dc1-47f8-9339-c1a26719527d

Winstone, George, Bennett, Robert, Rademacher, Markus, Rashid, Muddassar, Buhmann, Stefan and Ulbricht, Hendrik (2018) Direct measurement of the electrostatic image force of a levitated charged nanoparticle close to a surface. Physical Review A, 98 (5). (doi:10.1103/PhysRevA.98.053831).

Record type: Article

Abstract

We report on optical levitation experiments to probe the interaction of a nanoparticle with a surface in vacuum. The observed interaction-induced effect is a controllable anharmonicity of the particle trapping potential. We reconstruct the Coulomb image charge interaction potential to be in perfect agreement with the experimental data for a particle carrying Q=-(11±1)e elementary charges and compare the measured electrostatic interaction with the weaker dispersive forces from theory. Our experimental results may open the route for a new surface sensitive scanning probe technique based on the high mechanical sensitivity of levitated nanoparticles.

Full text not available from this repository.

More information

e-pub ahead of print date: 19 November 2018
Published date: November 2018

Identifiers

Local EPrints ID: 428420
URI: https://eprints.soton.ac.uk/id/eprint/428420
ISSN: 2469-9926
PURE UUID: e2eac7e5-eee4-443a-a10a-98fe2adb575b

Catalogue record

Date deposited: 22 Feb 2019 17:31
Last modified: 22 Feb 2019 17:31

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×