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Proceedings Paper

Single-SLM 3D interactive micromanipulation based on the generalized phase contrast (GPC) approach
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Paper Abstract

Using a single phase-only spatial light modulator (SLM), we present a compact GPC-based optical trapping system for interactively manipulating microscopic particles in three dimensions (3D) and in real-time. We employ only one GPC 4f setup, which transforms 2D phase into intensity patterns, and utilize the SLM to form two phase-encoding regions defined by two equally sized apertures - one centered at x = x0 and the other at x = -x0 (with the optical axis centered at x = 0). Reconfigurable intensity patterns associated with the two independently addressable SLM-apertures are relayed to the sample volume to form a dynamic array of counterpropagating-beam traps. We discuss the experimental demonstrations showing 3D trapping of microparticles using the presented optical setup.

Paper Details

Date Published: 19 February 2007
PDF: 7 pages
Proc. SPIE 6441, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues V, 644110 (19 February 2007); doi: 10.1117/12.700030
Show Author Affiliations
Peter John Rodrigo, Risø National Lab. (Denmark)
Ivan R. Perch-Nielsen, Risø National Lab. (Denmark)
Carlo Amadeo Alonzo, Risø National Lab. (Denmark)
Jesper Glückstad, Risø National Lab. (Denmark)

Published in SPIE Proceedings Vol. 6441:
Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues V
Daniel L. Farkas; Robert C. Leif; Dan V. Nicolau, Editor(s)

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