Apparatus and method to generate and control optical traps...

Details Apparatus and method to generate and control optical traps... Apparatus and method to generate and control optical traps...

2008-04-01

2008-04-01

Wells, Nikita (Department: 2881)

Radiant energy

Electrically neutral molecular or atomic beam devices and...

C359S015000

Reexamination Certificate

active

11522975

ABSTRACT:
The present invention relates generally to an apparatus and method to generating and controlling optical traps for manipulation of small particles. An upstream modification of an input laser beam provides a beam with a square or other preselected, cross section of intensity which can be used to form optical traps with a corresponding cross section of intensity.

REFERENCES:
patent: 5939716 (1999-08-01), Neal
patent: 6055106 (2000-04-01), Grier et al.
patent: 7161140 (2007-01-01), Grier et al.
J. Arlt and M.J. Padgett. “Generation of a beam with a dark focus surrounded by areas of higher intensity: The optical bottle beam,” Opt. Lett. 25, 191-193, 2000.
L. Paterson, M.P. MacDonald, J Arlt, W. Sibbett, P.E. Bryant, and K. Dholakia, “Controlled rotation of optically trapped microscopic particles,” Science 292, 912-914, 2001.

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