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Holographic microscopy of levitating particles
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SYSNO ASEP 0536104 Document Type O - Others R&D Document Type Others Title Holographic microscopy of levitating particles Author(s) Brzobohatý, Oto (UPT-D) RID, ORCID, SAI
Chvátal, Lukáš (UPT-D) RID, ORCID, SAI
Jonáš, Alexandr (UPT-D) RID, SAI, ORCIDNumber of authors 3 Year of issue 2020 Language eng - English Country CZ - Czech Republic Keywords holographic microscopy ; optical trapping ; optical levitation Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects TN01000008 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Institutional support UPT-D - RVO:68081731 Annotation Optically levitated nanoparticles have recently gained increasing attention as an attractive experimental platform suitable for testing fundamental ideas of quantum physics and statisticalmechanics, as well as for implementing highly sensitive detection schemes for characterizing static and dynamic interaction forces and potentials on the nanometer spatial scale. However, despite these unprecedentedly high sensitivities, the practical performance of force sensors based on optically levitated nanoparticles is still markedly limited by uncertainties in the particle displacement calibration, whose accuracy is critically affected by the poor knowledge on the particle’s mass and size. Holographic video microscopy has emerged as a promising experimental technique for high-resolution, three-dimensional (3D) tracking of position of individual colloidal particles and for quantitative characterization of the particle size, morphology, and refractive index. In our research project, we developed a theoretical model capable of predicting features in the digital holograms that arise from the finite aperture of the light-collecting lens. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2021
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