Static force characterization with Fano anti-resonance in levitated optomechanics
Static force characterization with Fano anti-resonance in levitated optomechanics
We demonstrate a classical analogy to the Fano anti-resonance in levitated optomechanics by applying a DC electric field. Specifically, we experimentally tune the Fano parameter by applying a DC voltage from 0 kV to 10 kV on a nearby charged needle tip. We find consistent results across negative and positive needle voltages, with the Fano line-shape feature able to exist at both higher and lower frequencies than the fundamental oscillator frequency. We can use the Fano parameter to characterize our system to be sensitive to static interactions which are ever-present. Currently, we can distinguish a static Coulomb force of 2.7 ± 0.5 × 10−15 N with the Fano parameter, which is measured with one second of integration time. Furthermore, we are able to extract the charge to mass ratio of the trapped nanoparticle.
1-6
Timberlake, Christopher
0389857f-3bb0-4e90-96f0-363591417d50
Toros, Marko
bd02c9f1-e498-474e-a98d-5b9882874915
Hempston, David
0100bb52-ca44-452f-93e9-c38c5a56ee6b
Winstone, George
a2280720-4c80-43d7-97d0-85666ee4a1e5
Rashid, Muddassar
c5ffce41-d8df-4c49-a7c8-fdefc4a4df06
Ulbricht, Hendrik
5060dd43-2dc1-47f8-9339-c1a26719527d
Timberlake, Christopher
0389857f-3bb0-4e90-96f0-363591417d50
Toros, Marko
bd02c9f1-e498-474e-a98d-5b9882874915
Hempston, David
0100bb52-ca44-452f-93e9-c38c5a56ee6b
Winstone, George
a2280720-4c80-43d7-97d0-85666ee4a1e5
Rashid, Muddassar
c5ffce41-d8df-4c49-a7c8-fdefc4a4df06
Ulbricht, Hendrik
5060dd43-2dc1-47f8-9339-c1a26719527d
Timberlake, Christopher, Toros, Marko, Hempston, David, Winstone, George, Rashid, Muddassar and Ulbricht, Hendrik
(2019)
Static force characterization with Fano anti-resonance in levitated optomechanics.
Applied Physics Letters, 114 (2), , [023104].
(doi:10.1063/1.5081045).
Abstract
We demonstrate a classical analogy to the Fano anti-resonance in levitated optomechanics by applying a DC electric field. Specifically, we experimentally tune the Fano parameter by applying a DC voltage from 0 kV to 10 kV on a nearby charged needle tip. We find consistent results across negative and positive needle voltages, with the Fano line-shape feature able to exist at both higher and lower frequencies than the fundamental oscillator frequency. We can use the Fano parameter to characterize our system to be sensitive to static interactions which are ever-present. Currently, we can distinguish a static Coulomb force of 2.7 ± 0.5 × 10−15 N with the Fano parameter, which is measured with one second of integration time. Furthermore, we are able to extract the charge to mass ratio of the trapped nanoparticle.
Text
Fano paper accepted
- Accepted Manuscript
More information
Accepted/In Press date: 28 December 2018
e-pub ahead of print date: 16 January 2019
Identifiers
Local EPrints ID: 427408
URI: http://eprints.soton.ac.uk/id/eprint/427408
ISSN: 0003-6951
PURE UUID: 2fe1857d-b3f1-4886-9354-c6be4a4951cd
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Date deposited: 15 Jan 2019 17:30
Last modified: 16 Mar 2024 03:58
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Contributors
Author:
Christopher Timberlake
Author:
Marko Toros
Author:
David Hempston
Author:
George Winstone
Author:
Muddassar Rashid
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