Time-multiplexed Laguerre-Gaussian holographic optical tweezers for biological applicationsLafong, A., Hossack, W. J., Arlt, J., Nowakowski, T. J. and Read, N. D. (2006) Time-multiplexed Laguerre-Gaussian holographic optical tweezers for biological applications. Optics Express, 14 (7). pp. 3065-3072. ISSN 1094-4087 Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. Abstract/SummaryA ferroelectric liquid crystal spatial light modulator is used to generate up to 24 independently controllable traps in a holographic optical tweezers system using time-multiplexed Fresnel zone plates. For use in biological applications, helical zone plates are used to generate Laguerre-Gaussian laser modes. The high speed switching of the ferroelectric device together with recent advances in computer technology enable fast, smooth movement of traps that can be independently controlled in real time. This is demonstrated by the trapping and manipulation of yeast cells and fungal spores. (c) 2006 Optical Society of America.
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