Optical trapping and fluorescence control with vectorial structured light

dc.contributor.authorKritzinger, Ane
dc.contributor.authorForbes, Andrew
dc.contributor.authorForbes, Patricia B.C.
dc.contributor.emailpatricia.forbes@up.ac.zaen_US
dc.date.accessioned2023-02-10T05:33:39Z
dc.date.available2023-02-10T05:33:39Z
dc.date.issued2022-10
dc.description.abstractHere we functionalized micro-scaled polymer beads with nano-scaled quantum dots and demonstrate optical trapping and tweezing, with in-situ fluorescence measurement, in an all-digital all-optical configuration. We outline the chemistry required to facilitate this, from deactivating the optical trapping environment to size, adhesion and agglomeration control. We introduce a novel holographic optical trapping set-up that leverages on vectorially structured light, allowing for the delivery of tuneable forms of light from purely scalar to purely vector, including propagation invariant flat-top beams for uniform illumination and tailored intensity gradient landscapes. Finally, we show how this has the potential to quench bleaching in a single wavelength trap by linear (spatial mode) rather than non-linear effects, advancing the nascent field of optics for chemistry.en_US
dc.description.departmentChemistryen_US
dc.description.librarianam2023en_US
dc.description.sponsorshipThe National Research Foundation of South Africa.en_US
dc.description.urihttp://www.nature.com/scientificreportsen_US
dc.identifier.citationKritzinger, A., Forbes, A. & Forbes, P.B.C. 2022, 'Optical trapping and fluorescence control with vectorial structured light', Scientific Reports, vol. 12, art. 17690, pp. 1-12, doi : 10.1038/s41598-022-21224-1.en_US
dc.identifier.issn2045-2322 (online)
dc.identifier.other10.1038/s41598-022-21224-1
dc.identifier.urihttps://repository.up.ac.za/handle/2263/89381
dc.language.isoenen_US
dc.publisherNature Researchen_US
dc.rights© The Author(s) 2022. This article is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.subjectOptical trappingen_US
dc.subjectTweezingen_US
dc.subjectVectorially structured lighten_US
dc.subjectBleachingen_US
dc.titleOptical trapping and fluorescence control with vectorial structured lighten_US
dc.typeArticleen_US

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