Optically driven Archimedes micro-screws for micropump application
Posted on 2017-04-28 - 15:44
Archimedes micro-screws have been fabricated by three-dimensional two-photon polymerization using a Nd:YAG Q-switched microchip laser at 532nm. Due to their small sizes they can be easily manipulated, and made to rotate using low power optical tweezers. Rotation rates up to 40 Hz are obtained with a laser power of 200 mW, i.e. 0.2 Hz/mW. A photo-driven micropump action in a microfluidic channel is demonstrated with a non-optimized flow rate of 6pL/min. The optofluidic properties of such type of Archimedes micro-screws are quantitatively described by the conservation of momentum that occurs when the laser photons are reflected on the helical micro-screw surface.
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Lin, Chih-Lang; Vitrant, Guy; Bouriau, Michel; Casalegno, Roger; Baldeck, Patrice L. (2011). Optically driven Archimedes micro-screws for micropump application. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.3763601.v1
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AUTHORS (5)
CL
Chih-Lang Lin
GV
Guy Vitrant
MB
Michel Bouriau
RC
Roger Casalegno
PB
Patrice L. Baldeck