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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 12 — Jun. 8, 2009
  • pp: 9981–9988

Optical trapping and manipulation of metallic micro/nanoparticles via photorefractive crystals

Xinzheng Zhang, Junqiao Wang, Baiquan Tang, Xinhui Tan, Romano A. Rupp, Leiting Pan, Yongfa Kong, Qian Sun, and Jingjun Xu  »View Author Affiliations

Optics Express, Vol. 17, Issue 12, pp. 9981-9988 (2009)

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A simple method to trap and manipulate metallic micro/nano-particles on the surface of photorefractive crystals is proposed. After inducing inhomogeneous charge density and space-charge fields in photorefractive crystals by non-uniform illumination, both uncharged and charged metallic particles can be trapped on the illuminated surface due to dielectrophoretic force and electrophoretic force, respectively. A transition from dielectrophoresis to electrophoresis is observed when manipulating nano-silver particles with high surface space-charge field. Our results show that this method is simple and effective to form surface microstructures of metallic particles.

© 2009 OSA

OCIS Codes
(220.4000) Optical design and fabrication : Microstructure fabrication
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Optical Trapping and Manipulation

Original Manuscript: April 28, 2009
Revised Manuscript: May 13, 2009
Manuscript Accepted: May 14, 2009
Published: May 29, 2009

Xinzheng Zhang, Junqiao Wang, Baiquan Tang, Xinhui Tan, Romano A. Rupp, Leiting Pan, Yongfa Kong, Qian Sun, and Jingjun Xu, "Optical trapping and manipulation of metallic micro/nanoparticles via photorefractive crystals," Opt. Express 17, 9981-9988 (2009)

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