Deterministic approach to the generation of modified helical beams for optical manipulation

doi:10.1364/OPEX.13.003862

Optics Express

Editor: Michael Duncan
Vol. 13, Iss. 10 — May. 16, 2005
pp: 3862–3867

Deterministic approach to the generation of modified helical beams for optical manipulation

J. Lin, X.-C. Yuan, S. H. Tao, X. Peng, and H. B. Niu »View Author Affiliations

Optics Express, Vol. 13, Issue 10, pp. 3862-3867 (2005)
http://dx.doi.org/10.1364/OPEX.13.003862

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Abstract
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Abstract

We present a deterministic method to generate modified helical beams which create optical vortices with desired dark core intensity patterns in the far-field. The experiments are implemented and verified by a spatial light modulator (SLM), which imprints a phase function onto the incident wavefront of a TEM00 laser mode to transform the incident beam into a modified helical beam. The phase function can be calculated once a specific dark core shape of an optical vortex is required. The modified helical beam is exploited in optical manipulation with verification of its orbital angular momentum experimentally.

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(140.3300) Lasers and laser optics : Laser beam shaping
(140.7010) Lasers and laser optics : Laser trapping
(350.5030) Other areas of optics : Phase

ToC Category:
Research Papers

History
Original Manuscript: February 24, 2005
Revised Manuscript: May 10, 2005
Published: May 16, 2005

Citation
J. Lin, X.-C. Yuan, S. H. Tao, X. Peng, and H. B. Niu, "Deterministic approach to the generation of modified helical beams for optical manipulation," Opt. Express 13, 3862-3867 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-10-3862

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References

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