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Vacuum optomechanics of optically levitated objects: determination of nonlinear properties of the optical trap

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    SYSNO ASEP0532400
    Document TypeC - Proceedings Paper (int. conf.)
    R&D Document TypeConference Paper
    TitleVacuum optomechanics of optically levitated objects: determination of nonlinear properties of the optical trap
    Author(s) Šiler, Martin (UPT-D) RID, ORCID, SAI
    Flajšmanová, Jana (UPT-D)
    Svak, Vojtěch (UPT-D) RID, SAI
    Jákl, Petr (UPT-D) RID, ORCID, SAI
    Simpson, Stephen Hugh (UPT-D) RID, SAI
    Filip, R. (CZ)
    Brzobohatý, Oto (UPT-D) RID, ORCID, SAI
    Zemánek, Pavel (UPT-D) RID, SAI, ORCID
    Number of authors8
    Article number112970Y
    Source TitleComplex Light and Optical Forces XIV. Proceedings of SPIE, 11297. - Bellingham : SPIE, 2020 - ISSN 0277-786X - ISBN 978-1-5106-3358-2
    SeriesProceedings of SPIE
    Number of pages6 s.
    Publication formPrint - P
    ActionConference on Complex Light and Optical Forces /14./
    Event date04.02.2020 - 05.02.2020
    VEvent locationSan Francisco
    CountryUS - United States
    Event typeWRD
    Languageeng - English
    CountryUS - United States
    Keywordsoptical levitation ; optical tweezers ; nonlinear motion
    Subject RIVBH - Optics, Masers, Lasers
    OECD categoryOptics (including laser optics and quantum optics)
    R&D ProjectsGA19-17765S GA ČR - Czech Science Foundation (CSF)
    LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    Institutional supportUPT-D - RVO:68081731
    UT WOS000552296600009
    EID SCOPUS85082673043
    DOI10.1117/12.2546009
    AnnotationOptically levitated nanoparticles in vacuum are a promising tool aiming for the extremely sensitive force measurements in reaching up to the order of zN.Hz(-1/2) and for the potential investigation in the field of quantum physics. In contrast to other mechanical oscillators, the optically trapped nanoparticle in vacuum has no clamping losses, its motion is influenced only by a laser beam and its potential profile and therefore the mechanical quality factor of such oscillator is very high. In water immersion the optical trap is almost exclusively considered as harmonic but in vacuum the optical potential anharmonicity starts to play an important role. This can be observed in power spectrum density profile where the oscillation peak is asymmetric. Here we demonstrate on the simulated trajectories of the levitated particle how the standard power spectral density method provides strongly biased values of parameters describing the optical trap and its surrounding properties.
    WorkplaceInstitute of Scientific Instruments
    ContactMartina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
    Year of Publishing2021
Number of the records: 1  

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