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Complex colloidal structures with non-linearoptical properties formed in an optical trap

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    SYSNO ASEP0535416
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleComplex colloidal structures with non-linearoptical properties formed in an optical trap
    Author(s) Brzobohatý, Oto (UPT-D) RID, ORCID, SAI
    Chvátal, Lukáš (UPT-D) RID, ORCID, SAI
    Šiler, Martin (UPT-D) RID, ORCID, SAI
    Zemánek, Pavel (UPT-D) RID, SAI, ORCID
    Number of authors4
    Source TitleOptics Express - ISSN 1094-4087
    Roč. 28, č. 25 (2020), s. 37700-37707
    Number of pages8 s.
    Publication formOnline - E
    Languageeng - English
    CountryUS - United States
    Keywordsoptical trapping ; nonlinear optical medium ; artificial materials
    Subject RIVBH - Optics, Masers, Lasers
    OECD categoryOptics (including laser optics and quantum optics)
    R&D ProjectsGA18-27546S GA ČR - Czech Science Foundation (CSF)
    LO1212 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    ED0017/01/01 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    EF16_026/0008460 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    Method of publishingOpen access
    Institutional supportUPT-D - RVO:68081731
    UT WOS000596707100050
    EID SCOPUS85097474862
    DOI10.1364/OE.405839
    Annotationllumination of a colloidal suspension of dielectric nanoparticles (50 nm in radius)with counter-propagating non-interfering laser beams of sufficient power leads to spatial redistri-bution of particles due to associated optical forces and formation of colloidal structures composedof thousands of nanoparticles along the beams. We employ a weak probe beam propagatingthrough the colloidal structure and demonstrate that the colloidal structure acts effectively as anon-linear optical medium, similar to a gradient index lens, with optical transformation propertiesexternally tunable by trapping laser power. With an increasing number of nanoparticles weobserve the formation of a more complex colloidal structure axially and even laterally and weexplain the origin of this process.
    WorkplaceInstitute of Scientific Instruments
    ContactMartina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
    Year of Publishing2021
    Electronic addresshttps://www.osapublishing.org/oe/fulltext.cfm?uri=oe-28-25-37700&id=444109
Number of the records: 1