Shack-Hartmann multiple-beam optical tweezers

We introduce a new method for generating an array of programmable optical tweezers based on the principle of the Shack-Hartmann wave front sensor. In this approach, a lenslet array divides a laser beam into multiple point sources that are subsequently imaged onto the sample plane of an inverted micr...

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Bibliographic Details
Published inOptics express Vol. 11; no. 3; pp. 208 - 214
Main Authors Rodrigo, Peter, Eriksen, Rene, Daria, Vincent, Glueckstad, Jesper
Format Journal Article
LanguageEnglish
Published United States 10.02.2003
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Summary:We introduce a new method for generating an array of programmable optical tweezers based on the principle of the Shack-Hartmann wave front sensor. In this approach, a lenslet array divides a laser beam into multiple point sources that are subsequently imaged onto the sample plane of an inverted microscope. This results in a matrix of tightly focused beams used for local confinement and manipulation of micron-sized dielectric particles in an aqueous solution. Using a spatial light-modulating device, the phase profile of the laser beam is computer-encoded providing for controlled spatial deflections of the trapping beams.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.11.000208