Dynamics of multiple trapping by a single-beam laser tweezer

Daniel S. Kaputa, Andrey N. Kuzmin, Aliaksandr V. Kachynski, Alexander N. Cartwright, Paras N. Prasad
2005 Applied Optics  
A multiple-trap single-beam scanning laser tweezer system was developed and characterized. Different stationary and mobile multiple-trap modes were generated for polystyrene beads in a water environment. Trapping efficiency and stability were investigated for several dynamic parameters such as transition time between the sites, waiting time on a single site, number of trapping sites, and IR laser power. Optimal parameters for efficient generation of complex arrays and matrices were determined.
more » ... e demonstrate an example of a single laser beam multiple-trap application by measuring the trap's stiffness in water for our laser tweezer setup.
doi:10.1364/ao.44.003963 pmid:16004041 fatcat:4nobr7vybvbpdhldhnkxnlmbla