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Optics Letters

Optics Letters


  • Vol. 21, Iss. 11 — Jun. 1, 1996
  • pp: 827–829

Optical vortex trapping of particles

K. T. Gahagan and G. A. Swartzlander, Jr.  »View Author Affiliations

Optics Letters, Vol. 21, Issue 11, pp. 827-829 (1996)

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We demonstrate three-dimensional trapping of low-index particles (20-μm-diameter hollow glass spheres in water) by using a single, strongly focused, stationary dark optical vortex laser beam. The holographically generated vortex, which is similar to a TEM 01 * mode beam, was also used to trap and form ring patterns of high-index particles.

© 1996 Optical Society of America

Original Manuscript: December 1, 1995
Published: June 1, 1996

K. T. Gahagan and G. A. Swartzlander, "Optical vortex trapping of particles," Opt. Lett. 21, 827-829 (1996)

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