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Optically controlled hydrodynamic micro-manipulation
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SYSNO ASEP 0507105 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Optically controlled hydrodynamic micro-manipulation Author(s) Phillips, D. B. (GB)
Debono, L. (GB)
Simpson, Stephen Hugh (UPT-D) RID, SAI
Padgett, M. J. (GB)Number of authors 4 Article number 95481A Source Title Optical Trapping and Optical Micromanipulation XII (Proceedings of SPIE 9548). - Bellingham : SPIE, 2015 - ISSN 0277-786X - ISBN 9781628417142 Number of pages 8 s. Publication form Print - P Action Optical Trapping and Optical Micromanipulation /12./ Event date 09.08.2015-12.08.2015 VEvent location San Diego Country US - United States Event type WRD Language eng - English Country US - United States Keywords micro-manipulation ; optical tweezers ; Brownian dynamics Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) Institutional support UPT-D - RVO:68081731 UT WOS 000366497300035 EID SCOPUS 84951084110 DOI 10.1117/12.2191341 Annotation The ability to precisely manipulate micro-and nano-scale objects has been a major driver in the progression of nanotechnologies. In this proceedings we describe a form of micro-manipulation in which the position of a target object can be controlled via locally generated fluid flow, created by the motion of nearby optically trapped objects. The ability to do this relies on a simple principle: when an object is moved through a fluid, it displaces the surrounding fluid in a predictable manner, resulting in controllable hydrodynamic forces exerted on adjacent objects. Therefore, by moving optically trapped actuators using feedback in response to a target object's current position, the flow-field at the target can be dynamically controlled. Here we investigate the performance of such a system using stochastic Brownian dynamics simulations, which are based on numerical integration of the Langevin equation describing the evolution of the system, using the Rotne-Praga approximation to capture hydrodynamic interactions. We show that optically controlled hydrodynamic micro-manipulation has the potential to hold target objects in place, move them along prescribed trajectories, and damp their Brownian motion, using the indirect forces of the surrounding water alone. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2020
Number of the records: 1