Parametric feedback cooling of levitated optomechanics in a parabolic mirror trap
Parametric feedback cooling of levitated optomechanics in a parabolic mirror trap
Levitated optomechanics, a new experimental physics platform, holds promise for fundamental science and quantum technological sensing applications. We demonstrate a simple and robust geometry for optical trapping in vacuum of a single nanoparticle based on a parabolic mirror and the optical gradient force. We demonstrate parametric feedback cooling of all three motional degrees of freedom from room temperature to a few millikelvin. A single laser at 1550 nm and a single photodiode are used for trapping, position detection, and cooling for all three dimensions. Particles with diameters from 26 to 160 nm are trapped without feedback to 10−5 mbar, and with feedback-engaged, the pressure is reduced to 10−6 mbar. Modifications to the harmonic motion in the presence of noise and feedback are studied, and an experimental mechanical quality factor in excess of 4×107 is evaluated. This particle manipulation is key to building a nanoparticle matter-wave interferometer in order to test the quantum superposition principle in the macroscopic domain.
1421-1428
Vovrosh, Jamie
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Rashid, Muddassar
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Hempston, David
d9966ebc-8379-4871-98c2-e2cf1c72f48c
Bateman, James
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Paternostro, Mauro
cd9f8236-ceac-42f6-815d-e2dd6a1f4c07
Ulbricht, Hendrik
5060dd43-2dc1-47f8-9339-c1a26719527d
14 June 2017
Vovrosh, Jamie
f0f7025f-81e2-44b0-aff8-c4ed26e0514a
Rashid, Muddassar
c5ffce41-d8df-4c49-a7c8-fdefc4a4df06
Hempston, David
d9966ebc-8379-4871-98c2-e2cf1c72f48c
Bateman, James
38a2b8df-a0f4-4461-b7af-11ba991bdc9d
Paternostro, Mauro
cd9f8236-ceac-42f6-815d-e2dd6a1f4c07
Ulbricht, Hendrik
5060dd43-2dc1-47f8-9339-c1a26719527d
Vovrosh, Jamie, Rashid, Muddassar, Hempston, David, Bateman, James, Paternostro, Mauro and Ulbricht, Hendrik
(2017)
Parametric feedback cooling of levitated optomechanics in a parabolic mirror trap.
Journal of the Optical Society of America B, 34 (7), .
(doi:10.1364/JOSAB.34.001421).
Abstract
Levitated optomechanics, a new experimental physics platform, holds promise for fundamental science and quantum technological sensing applications. We demonstrate a simple and robust geometry for optical trapping in vacuum of a single nanoparticle based on a parabolic mirror and the optical gradient force. We demonstrate parametric feedback cooling of all three motional degrees of freedom from room temperature to a few millikelvin. A single laser at 1550 nm and a single photodiode are used for trapping, position detection, and cooling for all three dimensions. Particles with diameters from 26 to 160 nm are trapped without feedback to 10−5 mbar, and with feedback-engaged, the pressure is reduced to 10−6 mbar. Modifications to the harmonic motion in the presence of noise and feedback are studied, and an experimental mechanical quality factor in excess of 4×107 is evaluated. This particle manipulation is key to building a nanoparticle matter-wave interferometer in order to test the quantum superposition principle in the macroscopic domain.
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Accepted/In Press date: 24 May 2017
e-pub ahead of print date: 25 May 2017
Published date: 14 June 2017
Identifiers
Local EPrints ID: 418119
URI: http://eprints.soton.ac.uk/id/eprint/418119
ISSN: 0740-3224
PURE UUID: fba33394-eee6-4da7-b551-c3b8d103198d
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Date deposited: 22 Feb 2018 17:30
Last modified: 16 Mar 2024 03:58
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Contributors
Author:
Jamie Vovrosh
Author:
Muddassar Rashid
Author:
David Hempston
Author:
James Bateman
Author:
Mauro Paternostro
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