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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 5 — Mar. 1, 2013
  • pp: 721–723

Subwavelength optical trapping with a fiber-based surface plasmonic lens

Yuxiang Liu, Felix Stief, and Miao Yu  »View Author Affiliations

Optics Letters, Vol. 38, Issue 5, pp. 721-723 (2013)

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We demonstrate three-dimensional (3D) optical trapping of subwavelength polystyrene beads and bacteria with a surface plasmonic lens fabricated on the endface of an optical fiber. To the best of our knowledge, this is the first demonstration of 3D trapping of subwavelength particles with single fiber optical tweezers. The optical power for achieving a stable 3D trap is smaller compared with conventional optical tweezers, indicating a stronger trap. Compared with surface plasmon tweezers, the trap enabled by our fiber tweezers is located 6 wavelengths away from the fiber endface, reducing thermal effects due to the metal absorption and preventing physical contact with the trapped objects.

© 2013 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(350.4855) Other areas of optics : Optical tweezers or optical manipulation
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Optics at Surfaces

Original Manuscript: December 7, 2012
Revised Manuscript: January 29, 2013
Manuscript Accepted: January 30, 2013
Published: February 26, 2013

Virtual Issues
Vol. 8, Iss. 4 Virtual Journal for Biomedical Optics

Yuxiang Liu, Felix Stief, and Miao Yu, "Subwavelength optical trapping with a fiber-based surface plasmonic lens," Opt. Lett. 38, 721-723 (2013)

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