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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 20 — Sep. 28, 2009
  • pp: 17555–17562

Optofluidic generation of Laguerre-Gaussian beams

Gavin D. M. Jeffries, Graham Milne, Yiqiong Zhao, Carlos Lopez-Mariscal, and Daniel T. Chiu  »View Author Affiliations

Optics Express, Vol. 17, Issue 20, pp. 17555-17562 (2009)

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Laguerre-Gaussian (LG) beams have been extensively studied due to their unique structure, characterized by a phase singularity at the center of the beam. Common methods for generating such beams include the use of diffractive optical elements and spatial light modulators, which although offering excellent versatility, suffers from several drawbacks, including in many cases a low power damage threshold as well as complexity and expense. This paper presents a simple, low cost method for the generation of high-fidelity LG beams using rapid prototyping techniques. Our approach is based on a fluidic-hologram concept, whereby the properties of the LG beam can be finely controlled by varying the refractive-index of the fluid that flows through the hologram. This simple approach, while optimized here for LG beam generation, is also expected to find applications in the production of tunable fluidic optical trains.

© 2009 OSA

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(140.3300) Lasers and laser optics : Laser beam shaping
(220.0220) Optical design and fabrication : Optical design and fabrication
(050.4865) Diffraction and gratings : Optical vortices

ToC Category:
Physical Optics

Original Manuscript: July 7, 2009
Revised Manuscript: August 21, 2009
Manuscript Accepted: September 9, 2009
Published: September 16, 2009

Gavin D. M. Jeffries, Graham Milne, Yiqiong Zhao, Carlos Lopez-Mariscal, and Daniel T. Chiu, "Optofluidic generation of Laguerre-Gaussian beams," Opt. Express 17, 17555-17562 (2009)

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