title: Dynamics of multiple trapping by a single-beam laser tweezer.
abstract: 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. We demonstrate an example of a single laser beam multiple-trap application by measuring the trap's stiffness in water for our laser tweezer setup.
authors: The Institute for Lasers, Photonics, and Biophotonics, State University of New York at Buffalo, 458 Natural Sciences Complex, Buffalo, New York 14260-3000, USA. dskaputa@buffalo.edu
authors: Daniel S
authors: DS
authors: Kaputa
authors: Andrey N
authors: AN
authors: Kuzmin
authors: Aliaksandr V
authors: AV
authors: Kachynski
authors: Alexander N
authors: AN
authors: Cartwright
authors: Paras N
authors: PN
authors: Prasad
mesh_terms: D000465:Algorithms; D004548:Elasticity; D004867:Equipment Design; D019544:Equipment Failure Analysis / Q000379:methods; D007834:Lasers; D008846:Micromanipulation / Q000295:instrumentation / Q000379:methods*; D018613:Microscopy, Confocal / Q000379:methods; D008863:Microspheres; D009038:Motion; D010812:Physical Stimulation / Q000295:instrumentation / Q000379:methods*; D011137:Polystyrenes / Q000528:radiation effects; D012371:Robotics / Q000295:instrumentation / Q000379:methods*; D012984:Software
chemical_list: D011137:Polystyrenes