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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 4 — Feb. 1, 2010
  • pp: 673–677

Controllable rotation of optical beams with bored helical phases

Stein Alec Baluyot and Nathaniel Hermosa, II  »View Author Affiliations


Applied Optics, Vol. 49, Issue 4, pp. 673-677 (2010)
http://dx.doi.org/10.1364/AO.49.000673


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Abstract

We achieve controllable noninterferometric rotation of a bored helical beam by introducing a phase shift exclusively to the annular helical region of the phase. We present a derivation based on the decomposition of the beams, which shows that a constant phase shift of Δ Φ between the bore and the surrounding helical phase with topological charge ℓ will rotate the intensity profile by Δ Φ / about its center. The effect of the phase shifting is verified with experiments. This technique is simple, while it preserves the transverse intensity profiles of the beams. Our report may find applications in optical manipulation and trapping.

© 2010 Optical Society of America

OCIS Codes
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(050.4865) Diffraction and gratings : Optical vortices
(070.7345) Fourier optics and signal processing : Wave propagation

ToC Category:
Fourier Optics and Signal Processing

History
Original Manuscript: September 21, 2009
Revised Manuscript: December 16, 2009
Manuscript Accepted: December 20, 2009
Published: January 27, 2010

Citation
Stein Alec Baluyot and Nathaniel Hermosa, II, "Controllable rotation of optical beams with bored helical phases," Appl. Opt. 49, 673-677 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-4-673

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