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Fabricating microscopic tools: towards optically actuated micro-robotic
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SYSNO ASEP 0507170 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Fabricating microscopic tools: towards optically actuated micro-robotic Author(s) Phillips, D. B. (GB)
Padgett, M. J. (GB)
Rarity, J.G. (GB)
Miles, M.J. (GB)
Simpson, Stephen Hugh (UPT-D) RID, SAINumber of authors 5 Article number 937402 Source Title Advanced Fabrication Technologies for Micro/Nano Optics and Photonics VIII. Proceedings of SPIE, 9374. - Bellingham : SPIE, 2015 - ISSN 0277-786X - ISBN 978-1-62841-464-6 Number of pages 6 s. Publication form Print - P Action Conference on Advanced Fabrication Technologies for Micro/Nano Optics and Photonics /8./ Event date 08.02.2015 - 11.02.2015 VEvent location San Francisco Country US - United States Event type WRD Language eng - English Country US - United States Keywords direct laser writing ; holographic optical tweezers ; micro-robotics ; scanning probe Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) Institutional support UPT-D - RVO:68081731 UT WOS 000354200600001 EID SCOPUS 84930268567 DOI 10.1117/12.2084812 Annotation Direct laser writing is a powerful and flexible tool with which to create 3D micro-scale structures with nanoscale features. These structures can then be dispersed in aqueous media and dynamically actuated in three dimensions using optical tweezers. The ability to build, actuate and precisely measure the motion of complex microscopic structures heralds a variety of new applications - optically actuated micro-robotics. In this article we describe how these devices are designed, fabricated and controlled. Once trapped, we are able to accurately measure the translational and rotational Brownian motion of the structures in real-time (at up to a few kHz) in three dimensions using high-speed video stereo-microscopy. This enables their motion to be controlled automatically using feedback, transforming the structures into quantitative tools. We discuss a range of applications, including the imaging of surface topography inside a sealed micro-fluidic chamber, and work towards the controlled rotation of cells about an arbitrary axis. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2020
Number of the records: 1