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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 4 — Feb. 15, 2014
  • pp: 949–952

Unveiling square and triangular optical lattices: a comparative study

Juarez G. Silva, Alcenísio J. Jesus-Silva, Márcio A. R. C. Alencar, Jandir M. Hickmann, and Eduardo J. S. Fonseca  »View Author Affiliations

Optics Letters, Vol. 39, Issue 4, pp. 949-952 (2014)

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We study square and triangular optical lattice formation using a diffraction technique with light-possessing orbital angular momentum (OAM). We demonstrate that it is possible to use Fraunhofer diffraction of light by a square aperture to unveil OAM about two times bigger than would be possible with a triangular aperture. We notice that the pattern remains truncated until a topological charge (TC) equal to 20 with good precision. Even though a square pattern cannot be used to determine the TC sign, it is possible to measure high order of the modulus and sign of the TC up to 20, combining patterns of the triangular and square apertures.

© 2014 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1220) Diffraction and gratings : Apertures
(050.1940) Diffraction and gratings : Diffraction
(050.4865) Diffraction and gratings : Optical vortices

ToC Category:
Diffraction and Gratings

Original Manuscript: October 28, 2013
Revised Manuscript: January 7, 2014
Manuscript Accepted: January 7, 2014
Published: February 11, 2014

Juarez G. Silva, Alcenísio J. Jesus-Silva, Márcio A. R. C. Alencar, Jandir M. Hickmann, and Eduardo J. S. Fonseca, "Unveiling square and triangular optical lattices: a comparative study," Opt. Lett. 39, 949-952 (2014)

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