Optical trapping and manipulation of metallic micro/nanoparticles via photorefractive crystals
- Author(s)
- Xin-Zheng Zhang, Junqiao Wang, Bai-Quan Tang, Xinhui Tan, Romano Rupp, Leiting Pan, Yong-Fa Kong, Qian Sun, Jing-Jun Xu
- Abstract
A simple method to trap and manipulate metallic micro/nanoparticles 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.
- Organisation(s)
- Physics of Functional Materials
- External organisation(s)
- Nankai University
- Journal
- Optics Express
- Volume
- 17
- Pages
- 9981-9988
- No. of pages
- 8
- DOI
- https://doi.org/10.1364/OE.17.009981
- Publication date
- 2009
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103021 Optics
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/optical-trapping-and-manipulation-of-metallic-micronanoparticles-via-photorefractive-crystals(bf807509-78f6-4da3-ba22-9779f41594a7).html