Title :
The potential for an all-optically assembled, powered and controlled micro-fluidic lab-on-a-chip system
Author :
Gluckstad, J. ; Daria, V.R. ; Rodrigo, P.J.
Author_Institution :
Opt. & Fluid Dynamics Dept., Riso Nat. Lab., Roskilde, Denmark
Abstract :
In this work we will give an overview demonstrating the flexibility of a multiple beam trapping system that enables interactive manipulation of fluid borne colloidal structures with advanced controllability and versatility. Multiple beam trapping patterns are obtained from a direct map of the phase or polarization variations encoded on a programmable phase only spatial light modulator. A graphical user interface that encodes desired patterns onto the SLM enables interactive and independent control over the dynamics and geometry of each trapping beam. Experimental results show that the system can be used for guided assembly of particles in a plane, control of particle stacking along a beam axis, and real-time sorting of inhomogeneous mixtures of microspheres. These experiments illustrate that multiple beams generated by the system can be utilized not only for the improved synthesis of functional microstructures but also for their non-contact and parallel actuation crucial for sophisticated microfluidic-based lab-on-a-chip demonstrations in the future.
Keywords :
chemical analysis; microfluidics; optical fabrication; self-focusing; chemical analysis; controllability; controlled microfluidic lab-on-a-chip system; fluid borne colloidal structures; functional microstructures; graphical user interface; interactive manipulation; microspheres; multiple beam trapping system; optically assembled system; polarization variations; programmable phase; spatial light modulator; Assembly systems; Control systems; Controllability; Geometrical optics; Graphical user interfaces; Lab-on-a-chip; Modulation coding; Optical modulation; Optical polarization; Phase modulation;
Conference_Titel :
Microprocesses and Nanotechnology Conference, 2003. Digest of Papers. 2003 International
Conference_Location :
Tokyo, Japan
Print_ISBN :
4-89114-040-2
DOI :
10.1109/IMNC.2003.1268710