Manipulation of aerosols revolving in taper-ring optical traps

Optics Letters
Fengrui LiuXiaoping Wu

Abstract

We designed taper-ring optical traps by a weakly focused laser beam through a circular aperture. By railing-like potential barriers, these optical traps are partitioned into enclosed rings, in which irregular light-absorbing microparticles can be driven by photophoretic force to revolve around optical axis in air. The diameter of revolution can reach about 700 μm, which is much larger than that in traditional optical traps based on radiation pressure and gradient force. More importantly, multiple particles were driven to revolve simultaneously in different planes in air for the first reported time to the best of our knowledge.

References

Aug 15, 2003·Nature·David G Grier
Jan 17, 2008·Chemical Society Reviews·Kishan DholakiaMin Gu
Apr 17, 2009·Optics Letters·L IsenhowerM Saffman
Jun 1, 1996·Optics Letters·K T Gahagan, G A Swartzlander
Feb 23, 2010·Optics Express·Vladlen G ShvedovYuri S Kivshar
Sep 28, 2010·Physical Review Letters·Vladlen G ShvedovYuri S Kivshar
Jan 15, 2011·Physical Review Letters·Xi-Lin WangHui-Tian Wang
Jun 5, 2012·Optics Letters·Vladlen G ShvedovWieslaw Krolikowski

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Citations

Apr 1, 2017·Optics Letters·Remy AvilaArturo González-Suárez
Oct 17, 2014·Optics Express·Fengrui LiuXiaoping Wu
Mar 7, 2016·Optics Express·Yuntian ZhangXiaoping Wu
May 3, 2019·Applied Optics·Zhikun YangLiang Jin
Dec 25, 2019·Applied Optics·Wesley RogersDaniel Smalley

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