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Vacuum levitation of nanoparticles
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SYSNO ASEP 0568276 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title Vacuum levitation of nanoparticles Author(s) Svak, Vojtěch (UPT-D) RID, SAI
Flajšmanová, Jana (UPT-D)
Šiler, Martin (UPT-D) RID, ORCID, SAI
Brzobohatý, Oto (UPT-D) RID, ORCID, SAI
Simpson, Stephen Hugh (UPT-D) RID, SAI
Jákl, Petr (UPT-D) RID, ORCID, SAI
Jonáš, Alexandr (UPT-D) RID, SAI, ORCID
Ježek, Jan (UPT-D) RID, ORCID, SAI
Zemánek, Pavel (UPT-D) RID, SAI, ORCIDSource Title Book of Abstracts. 22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, September 5-9, 2022, Wojanów, Poland. - Wrocław : Wroclaw University of Science and Technology, 2022 / Sztylińska K.
S. 55Number of pages 1 s. Publication form Online - E Action Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics /22./ Event date 05.09.2022 - 09.09.2022 VEvent location Wojanow Country PL - Poland Event type WRD Language eng - English Country PL - Poland Keywords levitated optomechanics ; optical binding ; coupled nanomechanical oscillators ; dual-beam optical trap ; spatial light modulator ; Bayesian inference Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) Institutional support UPT-D - RVO:68081731 Annotation Micro- and nano-particles levitated in optical fields act as nanoscale oscillators. When operated in vacuum, they become excellent low dissipation optomechanical
objects, with minimal thermal contact to the environment. Levitated optomechanics is considered the most promising platform for studying high-mass quantum physics, including macroscopic entanglement of two massive objects. Also, optically trapped nanoparticles represent the testbed for nanoscale stochastic processes. No matter what the application is, the experimenters face the problems of preparation, characterization and control of mechanical system. We present experimental realization of microscale system of two coupled oscillators, which is made up of two optically levitated and optically bound micro-particles. We reach air pressure for which the normal-mode splitting start to occur and show, that an active control of the system needs to be employed in order to prevent particle collision while decreasing the pressure even more. We introduce a Bayesian inference based framework, which uses the measured stochastic trajectories of the micro-particles to estimate the optical forces acting on them. Although this framework was inspired by the need for characterization of optical binding forces, it is usable for estimation of optical forces from stochastic trajectories in general situations.Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2023
Number of the records: 1