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. 2016 Sep 7;6:32840. doi: 10.1038/srep32840

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Copyright © 2016, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Microscope images of metallic microspheres trapped by 200 μm diameter circular light pattern at (a) 600 μm/s, (b) 1600 μm/s and (c) 3200 μm/s; microscope images of metallic microspheres trapped by 60 μm diameter circular light pattern at (d) 600 μm/s, (e) 1400 μm/s and (f) 3000 μm/s. The metallic microsphere is outlined in red and the trap created by the light pattern is outlined in white. X is the centre-to-centre distance between the microsphere and the trap, which are indicated by vertical lines. (g) Trap profiles of metallic microspheres created by 200 μm, 150 μm, 100 μm and 60 μm diameter light pattern.