Abstract
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 mode beam, was also used to trap and form ring patterns of high-index particles.
© 1996 Optical Society of America
Full Article | PDF ArticleMore Like This
K. T. Gahagan and G. A. Swartzlander
J. Opt. Soc. Am. B 15(2) 524-534 (1998)
M. P. MacDonald, L. Paterson, W. Sibbett, K. Dholakia, and P. E. Bryant
Opt. Lett. 26(12) 863-865 (2001)
K. T. Gahagan and G. A. Swartzlander
J. Opt. Soc. Am. B 16(4) 533-537 (1999)