Open AccessTime-Multiplexed Laguerre-Gaussian holographic optical tweezers for biological applications
Author(s) -
A Lafong,
W.J. Hossack,
Jochen Arlt,
Tomasz J. Nowakowski,
Nick D. Read
Publication year - 2006
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.003065
Subject(s) - holography , optical tweezers , optics , spatial light modulator , multiplexing , gaussian , digital holography , computer generated holography , interference (communication) , materials science , laser , physics , computer science , telecommunications , quantum mechanics , channel (broadcasting)
A 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.