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Optical manipulation of aerosol droplets using a holographic dual and single beam trap
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SYSNO ASEP 0399673 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Optical manipulation of aerosol droplets using a holographic dual and single beam trap Author(s) Brzobohatý, Oto (UPT-D) RID, ORCID, SAI
Šiler, Martin (UPT-D) RID, ORCID, SAI
Ježek, Jan (UPT-D) RID, ORCID, SAI
Jákl, Petr (UPT-D) RID, ORCID, SAI
Zemánek, Pavel (UPT-D) RID, SAI, ORCIDNumber of authors 5 Source Title Optics Letters. - : Optical Society of America - ISSN 0146-9592
Roč. 38, č. 22 (2013), s. 4601-4604Number of pages 4 s. Publication form Print - P Language eng - English Country US - United States Keywords optical tweezers ; optical manipulation Subject RIV BH - Optics, Masers, Lasers R&D Projects GPP205/11/P294 GA ČR - Czech Science Foundation (CSF) GPP205/12/P868 GA ČR - Czech Science Foundation (CSF) LH12018 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 000327142600021 EID SCOPUS 84887905978 DOI 10.1364/OL.38.004601 Annotation We present optical trapping and manipulation of pure water and salt water airborne droplets of various sizes ranging from sub-micrometers up to several tens of micrometers in a holographic dual and single beam trap. In the dual beam trap, successful fusion of droplets as well as precise delivery of many droplets and manipulation of multiple droplets are demonstrated. Furthermore, employing the transfer of the orbital angular momentum of light from Laguerre–Gaussian beams, we show that the water droplets orbit around the beam propagation axis and their tangential speed can be controlled by beam waist magnitude. We also demonstrate that sub-micrometer sized pure water droplets can be trapped and manipulated by a single beam trap with a relatively low numerical aperture. In this case, multiple stable trapping positions were observed, both theoretically and experimentally, which were due to the optical intensity oscillations in the focal region of the laser beam. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2014
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