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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 22 — Nov. 15, 2013
  • pp: 4601–4604

Optical manipulation of aerosol droplets using a holographic dual and single beam trap

Oto Brzobohatý, Martin Šiler, Jan Ježek, Petr Jákl, and Pavel Zemánek  »View Author Affiliations


Optics Letters, Vol. 38, Issue 22, pp. 4601-4604 (2013)
http://dx.doi.org/10.1364/OL.38.004601


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Abstract

We present optical trapping and manipulation of pure water and salt water airborne droplets of various sizes ranging from sub-micrometers up to several tens of micrometers in a holographic dual and single beam trap. In the dual beam trap, successful fusion of droplets as well as precise delivery of many droplets and manipulation of multiple droplets are demonstrated. Furthermore, employing the transfer of the orbital angular momentum of light from Laguerre–Gaussian beams, we show that the water droplets orbit around the beam propagation axis and their tangential speed can be controlled by beam waist magnitude. We also demonstrate that sub-micrometer sized pure water droplets can be trapped and manipulated by a single beam trap with a relatively low numerical aperture. In this case, multiple stable trapping positions were observed, both theoretically and experimentally, which were due to the optical intensity oscillations in the focal region of the laser beam.

© 2013 Optical Society of America

OCIS Codes
(290.4020) Scattering : Mie theory
(290.5850) Scattering : Scattering, particles
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Scattering

History
Original Manuscript: August 26, 2013
Revised Manuscript: October 3, 2013
Manuscript Accepted: October 3, 2013
Published: November 6, 2013

Virtual Issues
Vol. 9, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Oto Brzobohatý, Martin Šiler, Jan Ježek, Petr Jákl, and Pavel Zemánek, "Optical manipulation of aerosol droplets using a holographic dual and single beam trap," Opt. Lett. 38, 4601-4604 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-22-4601

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