Near-Field Optical Trap by Tapered Fibre Probe

  • Guoping Zhang
  • Zhuming Huang
  • Hai Ming
Conference paper

Abstract

We propose a new method for optical trap in this paper. It is based on a tapered fibre probe with a tip size less than a light wavelength. A three-dimension gradient optical field is formed within the optical near field of the fibre probe, and a particle approaching the fibre tip will be trapped. We calculate the evanescent electromagnetic field near the fibre tip and obtain the trapping force for a dielectric particle. The calculating results show the availability of this method.

Keywords

Verse 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A. Ashkin, J. M. Dziedzic, J. E. Bjorkholm, S. Chu: Observation of a single-beam gradient force optical trap for dielectric particles. Opt. Lett. 11, 288–290 (1986)ADSCrossRefGoogle Scholar
  2. 2.
    W. H. Wright, G. J. Sonek, Y. Tadir, M. W. Berns: Laser trapping in cell biology. IEEE J. Quantum Electron. 26, 2148–2157 (1990)ADSCrossRefGoogle Scholar
  3. 3.
    W. Jhe: Photon scanning tunneling microscope and optical nanotechnology. AAPPS Bulletin 5, 12–14 (1995)Google Scholar
  4. 4.
    Zhang Guoping, Ming Hai, Chen Xiaogang, Wu Yunxia, Xie Jianping: Effect of the Taper Shape upon Transmission Efficiency of Fibre Probes for Scanning Near-field Optical Microscopy. Chinese J. of Lasers B7, 357–362 (1998)Google Scholar
  5. 5.
    Lukas Novotny, Randy X. Bian and X. Sunney Xie: Theory of nanometric optical tweezers. Physical Review Letters 79, 645–648 (1997)ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Guoping Zhang
    • 1
  • Zhuming Huang
    • 2
  • Hai Ming
    • 3
  1. 1.Department of PhysicsCentral China Normal UniversityWuhanChina
  2. 2.Dept. of Basic CourseWuhan Institute of Chemical and TechnologyWuhanChina
  3. 3.Department of PhysicsUniversity of Science and Technology of ChinaHefeiChina

Personalised recommendations