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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 1, Iss. 4 — Apr. 12, 2006

Laser manipulation based on a light-induced molecular reordering

Naoki Murazawa, Saulius Juodkazis, and Hiroaki Misawa  »View Author Affiliations

Optics Express, Vol. 14, Issue 6, pp. 2481-2486 (2006)

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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.

© 2006 Optical Society of America

OCIS Codes
(070.4690) Fourier optics and signal processing : Morphological transformations
(160.3710) Materials : Liquid crystals
(180.6900) Microscopy : Three-dimensional microscopy
(190.5940) Nonlinear optics : Self-action effects
(220.4880) Optical design and fabrication : Optomechanics
(350.3950) Other areas of optics : Micro-optics

ToC Category:

Original Manuscript: February 3, 2006
Revised Manuscript: March 4, 2006
Manuscript Accepted: March 6, 2006
Published: March 20, 2006

Virtual Issues
Vol. 1, Iss. 4 Virtual Journal for Biomedical Optics

Naoki Murazawa, Saulius Juodkazis, and Hiroaki Misawa, "Laser manipulation based on a light-induced molecular reordering," Opt. Express 14, 2481-2486 (2006)

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