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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 3, Iss. S1 — Aug. 28, 2005
  • pp: S71–S73

Development of far field and near field optical trapping

Xin Huo, Shi Pan, Shifa Wu, and Wei Sun  »View Author Affiliations

Chinese Optics Letters, Vol. 3, Issue S1, pp. S71-S73 (2005)

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Optical trapping is an increasingly important technique for manipulating and probing matter ranging from nanometers to millimeters. In this paper, the theories of optical trapping to date are reviewed briefly. The typical conventional far field trapping design is introduced. A 5-micron yeast cell is trapped and manipulated with a 1.25 numerical aperture (NA) oil-immersion, 100X magnification objective by a 780 nm trapping beam at 16 mW in our experiment. Furthermore, the development of near-field optical trapping associated with evanescent wave is also discussed. Several proposed near-field trapping schemes, respectively using laser-illuminated metal tip, metal-coated fiber probe in the scanning near-field optical microscopy (SNOM) and focused evanescent wave, are also described.

© 2005 Chinese Optics Letters

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(170.5810) Medical optics and biotechnology : Scanning microscopy
(290.4210) Scattering : Multiple scattering
(290.5870) Scattering : Scattering, Rayleigh

Xin Huo, Shi Pan, Shifa Wu, and Wei Sun, "Development of far field and near field optical trapping," Chin. Opt. Lett. 3, S71-S73 (2005)

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