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Title: Optical trapping of core-shell magnetic microparticles by cylindrical vector beams

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4901343· OSTI ID:22391889
; ; ; ; ;  [1]
  1. Department of Optics and Optical Engineering and Anhui key laboratory for optoelectronic science and technology, University of Science and Technology of China, Hefei, Anhui 230026 (China)

Optical trapping of core-shell magnetic microparticles is experimentally demonstrated by using cylindrical vector beams. Second, we investigate the optical trapping efficiencies. The results show that radially and azimuthally polarized beams exhibit higher axial trapping efficiencies than the Gaussian beam. Finally, a trapped particle is manipulated to kill a cancer cell. The results make possible utilizing magnetic particles for optical manipulation, which is an important advantage for magnetic particles as labeling agent in targeted medicine and biological analysis.

OSTI ID:
22391889
Journal Information:
Applied Physics Letters, Vol. 105, Issue 18; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English