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Proceedings Paper

Four-dimensional multi-beam optical manipulation based on the Generalized Phase Contrast method
Author(s): Jesper Glueckstad; Peter J. L. Rodrigo; Vincent Ricardo Daria
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Paper Abstract

We are engaged in applying the Generalized Phase Contrast (GPC) method that enables lossless light conversion of spatial phase patterns to highly photon efficient light distributions. The GPC-method can be used in a number of applications requiring parallel light-beam encoding such as in advanced user-controlled optical micro-manipulation, wavefront sensing and generation for common-path interferometry and adaptive optics, optical phase-only encryption and integrated micro-optical implementations. In this work, we will outline the concept for a complete GPC-platform for advanced and user-interactive manipulation of fluid-borne colloidal structures with state-of-the-art controllability and versatility in 3D space and time, hence true 4D. Real-time reconfigurable light patterns with sub-micron accuracy are obtained from a direct map of phase patterns addressed on programmable phase-only spatial light modulator devices. A graphical user interface enables real-time, interactive and arbitrary control over the dynamics and geometry of synthesized light patterns. Experimental demonstrations have shown that GPC-driven micro-manipulation can be used for guided assembly of particles in a plane, control of particle stacking along the beam axis, manipulation of multiple hollow beads and real-time sorting of inhomogeneous mixtures of micro-particles. These experiments illustrate that GPC-driven micro-manipulation can be utilized not only for the improved synthesis of functional microstructures but also for their non-contact and parallel actuation crucial for sophisticated micro-fluidic based lab-on-a-chip demonstrations in the future.

Paper Details

Date Published: 14 March 2005
PDF: 7 pages
Proc. SPIE 5736, Nanomanipulation with Light, (14 March 2005); doi: 10.1117/12.590302
Show Author Affiliations
Jesper Glueckstad, Riso National Lab. (Denmark)
Peter J. L. Rodrigo, Riso National Lab. (Denmark)
Vincent Ricardo Daria, Riso National Lab. (Denmark)


Published in SPIE Proceedings Vol. 5736:
Nanomanipulation with Light
David L. Andrews, Editor(s)

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