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Spectral analysis and parameter estimation in levitated optomechanics

Chris Dawson, James Bateman Orcid Logo

Journal of the Optical Society of America B, Volume: 36, Issue: 6, Start page: 1565

Swansea University Author: James Bateman Orcid Logo

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DOI (Published version): 10.1364/josab.36.001565

Abstract

Optical levitation of nanoscale particles has emerged as a platform for precision measurement. Extremely low damping, together with optical interferometric position detection, makes possible exquisite force measurement and promises low-energy tests of fundamental physics. Essential to such measureme...

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Published in: Journal of the Optical Society of America B
ISSN: 0740-3224 1520-8540
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa50514
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first_indexed 2019-06-05T11:07:41Z
last_indexed 2020-06-29T13:02:01Z
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spelling 2020-06-29T11:56:19.3059744 v2 50514 2019-05-23 Spectral analysis and parameter estimation in levitated optomechanics 3b46126aa511514414c6c42c9c6f0654 0000-0003-4885-2539 James Bateman James Bateman true false 2019-05-23 SPH Optical levitation of nanoscale particles has emerged as a platform for precision measurement. Extremely low damping, together with optical interferometric position detection, makes possible exquisite force measurement and promises low-energy tests of fundamental physics. Essential to such measurement is an understanding of the confidence with which parameters can be inferred from spectra estimated from the indirect measurement provided by interferometry. We present an apparatus optimized for sensitivity along one motional degree of freedom, a theoretical model of the spectrum, and maximum likelihood estimation. The treatment accounts for the sinusoidal dependence of interferometric signal on particle position, and we use the technique to extract thermodynamic quantities in a regime where simpler treatments are confounded. Journal Article Journal of the Optical Society of America B 36 6 1565 0740-3224 1520-8540 1 6 2019 2019-06-01 10.1364/josab.36.001565 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2020-06-29T11:56:19.3059744 2019-05-23T17:22:26.9626592 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Chris Dawson 1 James Bateman 0000-0003-4885-2539 2 0050514-24052019110129.pdf 1903.01354v2.pdf 2019-05-24T11:01:29.2470000 Output 1007560 application/pdf Accepted Manuscript true 2020-06-01T00:00:00.0000000 true eng
title Spectral analysis and parameter estimation in levitated optomechanics
spellingShingle Spectral analysis and parameter estimation in levitated optomechanics
James Bateman
title_short Spectral analysis and parameter estimation in levitated optomechanics
title_full Spectral analysis and parameter estimation in levitated optomechanics
title_fullStr Spectral analysis and parameter estimation in levitated optomechanics
title_full_unstemmed Spectral analysis and parameter estimation in levitated optomechanics
title_sort Spectral analysis and parameter estimation in levitated optomechanics
author_id_str_mv 3b46126aa511514414c6c42c9c6f0654
author_id_fullname_str_mv 3b46126aa511514414c6c42c9c6f0654_***_James Bateman
author James Bateman
author2 Chris Dawson
James Bateman
format Journal article
container_title Journal of the Optical Society of America B
container_volume 36
container_issue 6
container_start_page 1565
publishDate 2019
institution Swansea University
issn 0740-3224
1520-8540
doi_str_mv 10.1364/josab.36.001565
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
active_str 0
description Optical levitation of nanoscale particles has emerged as a platform for precision measurement. Extremely low damping, together with optical interferometric position detection, makes possible exquisite force measurement and promises low-energy tests of fundamental physics. Essential to such measurement is an understanding of the confidence with which parameters can be inferred from spectra estimated from the indirect measurement provided by interferometry. We present an apparatus optimized for sensitivity along one motional degree of freedom, a theoretical model of the spectrum, and maximum likelihood estimation. The treatment accounts for the sinusoidal dependence of interferometric signal on particle position, and we use the technique to extract thermodynamic quantities in a regime where simpler treatments are confounded.
published_date 2019-06-01T04:01:59Z
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score 11.012678

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