Near-Field Optical Trap by Tapered Fibre Probe

  • Guoping Zhang
  • Zhuming Huang
  • Hai Ming
Conference paper


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.


Gradient Force Optical Trap Optical Trapping Transverse Distance Fibre Probe 
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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

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