Journal
OPTICS EXPRESS
Volume 12, Issue 8, Pages 1665-1670Publisher
OPTICAL SOC AMER
DOI: 10.1364/OPEX.12.001665
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Phase-hologram patterns that can shape the intensity distribution of a light beam in several planes simultaneously can be calculated with an iterative Gerchberg-Saxton algorithm [T. Haist et al., Opt. Commun. 140, 299 ( 1997)]. We apply this algorithm in holographic optical tweezers. This allows us to simultaneously trap several objects in individually controllable arbitrary 3-dimensional positions. We demonstrate the interactive use of our approach by trapping microscopic spheres and moving them into an arbitrary 3-dimensional configuration. (C) 2004 Optical Society of America.
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