%0 Journal Article %J Light: Sci. Appl. %D 2018 %T Enhancement of the `tractor-beam' pulling force on an optically bound structure %A Damková, Jana %A Lukáš Chvátal %A J Ježek %A Oulehla, Jindrich %A Oto Brzobohatý %A P. Zemánek %K LF %K MF %B Light: Sci. Appl. %V 7 %P 17135 %G eng %R 10.1038/lsa.2017.135