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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 1 — Jan. 1, 2006
  • pp: 94–103

Laser beams with embedded vortices: tools for atom optics

Narupon Chattrapiban, Elizabeth A. Rogers, Ilya V. Arakelyan, Rajarshi Roy, and Wendell T. Hill, III  »View Author Affiliations


JOSA B, Vol. 23, Issue 1, pp. 94-103 (2006)
http://dx.doi.org/10.1364/JOSAB.23.000094


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Abstract

Two-dimensional spatial light modulators have been employed to create static and dynamic phase masks for embedding multiple vortices and exotic intensity-void structures in laser beams. A variety of patterns of singularities, producing dark longitudinal and transverse intensity channels, have been created. The uniformity, quality, and suitability of these patterns as elements for atom optics (e.g., atom-tunnel beam splitters) have been studied as a function of the phase quantization level and spatial resolution of the phase mask. Specifically, we show that (1) high-quality modes, those that propagate long distances and can be focused, can be generated when the number of phase steps between 0 and 2 π on the phase mask exceed four and (2) atom confinement increases with the charge of the vortex.

© 2006 Optical Society of America

OCIS Codes
(020.7010) Atomic and molecular physics : Laser trapping
(230.0230) Optical devices : Optical devices

ToC Category:
Optical Devices

Citation
Narupon Chattrapiban, Elizabeth A. Rogers, Ilya V. Arakelyan, Rajarshi Roy, and Wendell T. Hill III, "Laser beams with embedded vortices: tools for atom optics," J. Opt. Soc. Am. B 23, 94-103 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-1-94


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