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Proceedings Paper

Manipulation of single and multiple low-index particles by means of optical tweezers
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Paper Abstract

Higher-order laser beams were demonstrated to enable optical manipulation of low-index-particles. In this work single-ringed Laguerre-Gaussian beams, obtained by means of phase-only diffractive optical elements, are used to perform manipulation of phospholipid-shelled gas microbubbles in water. Implementation of diffractive optical elements on a programmable spatial light modulator allows to generate also arrays of Laguerre-Gaussian traps. We show manipulation of low-index particles by properly displaying a suitable sequence of diffractive optical elements. Control over the distance between the trapped particles in real time is also demonstrated.

Paper Details

Date Published: 18 August 2005
PDF: 9 pages
Proc. SPIE 5930, Optical Trapping and Optical Micromanipulation II, 59301X (18 August 2005); doi: 10.1117/12.617072
Show Author Affiliations
Valeria Garbin, Univ. of Trieste (Italy)
LILIT group, TASC INFM-CNR (Italy)
Dan Cojoc, LILIT group, TASC INFM-CNR (Italy)
Enrico Ferrari, Univ. of Trieste (Italy)
LILIT group, TASC INFM-CNR (Italy)
Revati Kulkarni, IIIT (India)
Enzo Di Fabrizio, 'Magna Graecia' Univ. of Catanzaro (Italy)

Published in SPIE Proceedings Vol. 5930:
Optical Trapping and Optical Micromanipulation II
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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