2007
Manipulating metal-oxide nanowires using counter-propagating optical line tweezers
Publication
Publication
Opt. Express , Volume 15 - Issue 18 p. 11629- 11639
Semiconducting nanowires, such as ZnO and Si, are used in the fields of nanophotonics and nanoelectronics. Optical tweezers offer the promise of flexible positional control of such particles in a liquid, but so far this has been limited to either manipulation close to the surface, or to axial trapping of nanowires. We show the three-dimensional trapping of ZnO and silica-coated Si nanowires in counter-propagating line tweezers, and demonstrate translational and rotational in-plane manipulation, away from the surfaces. The high-refractive index particles investigated — ZnO wires (n~1.9) with varying lengths up to 20µm and 6-µm-long silica-coated Si wires (n =3.6) — could not be trapped in single-beam line traps. Opposite surface charges are used to fix the nanowires to a surface. Full translational and in-plane rotational control of semiconducting nanowires expands the possibilities to position individual wires in complex geometries significantly.
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| OPG | |
| doi.org/10.1364/OE.15.011629 | |
| Opt. Express | |
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van der Horst, A., Campbell, A. I., van Vugt, L. K., Vanmaekelbergh, D. A., Dogterom, M., & van Blaaderen, A. (2007). Manipulating metal-oxide nanowires using counter-propagating optical line tweezers. Opt. Express, 15(18), 11629–11639. doi:10.1364/OE.15.011629 |
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