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Vacuum optomechanics of optically levitated objects: determination of nonlinear properties of the optical trap
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SYSNO ASEP 0532400 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Vacuum 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, ORCIDNumber of authors 8 Article number 112970Y Source Title Complex Light and Optical Forces XIV. Proceedings of SPIE, 11297. - Bellingham : SPIE, 2020 - ISSN 0277-786X - ISBN 978-1-5106-3358-2 Series Proceedings of SPIE Number of pages 6 s. Publication form Print - P Action Conference on Complex Light and Optical Forces /14./ Event date 04.02.2020 - 05.02.2020 VEvent location San Francisco Country US - United States Event type WRD Language eng - English Country US - United States Keywords optical levitation ; optical tweezers ; nonlinear motion Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects GA19-17765S 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 support UPT-D - RVO:68081731 UT WOS 000552296600009 EID SCOPUS 85082673043 DOI 10.1117/12.2546009 Annotation Optically 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. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2021
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