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Laser manipulation based on a light-induced molecular reordering

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posted on 2024-07-09, 23:09 authored by Naoki Murazawa, Saulius JuodkazisSaulius Juodkazis, Hiroaki Misawa
We report on a novel principle of actuation of micrometer-sized liquid crystal droplets. It is based on a light-induced reordering of liquid crystal molecules inside the droplets. Polariscope imaging allowed to evaluate the birefringence change inside the micro-droplets. Directional actuation of the trapped droplet was achieved by cycling laser power with the direction defined by the polarization of the tweezing beam. Micro-actuation resulted from optically-induced birefringence; i.e., a nonlinear optical effect was utilized for mechanical manipulation of the micro-droplet. This principle of actuation can be used to induce molecular flows in sub-micrometer volumes.

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ISSN

1094-4087

Journal title

Optics Express

Volume

14

Issue

6

Pagination

5 pp

Publisher

Optical Society of America

Copyright statement

Copyright © 2006 Optical Society of America. The published version is reproduced in accordance with the copyright policy of the publisher. This paper was published in Optics Express and is made available as an electronic reprint with The permission of OSA. The paper can be found at The following URL on The OSA website: http://dx.doi.org/10.1364/oe.14.002481. Systematic or multiple reproduction or distribution to multiple locations via electronic or oTher means is prohibited and is subject to penalties under law.

Language

eng

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