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19 February 2007 Single-SLM 3D interactive micromanipulation based on the generalized phase contrast (GPC) approach
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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.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peter John Rodrigo, Ivan R. Perch-Nielsen, Carlo Amadeo Alonzo, and Jesper Glückstad "Single-SLM 3D interactive micromanipulation based on the generalized phase contrast (GPC) approach", Proc. SPIE 6441, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues V, 644110 (19 February 2007); https://doi.org/10.1117/12.700030
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