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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 4 — Feb. 24, 2014
  • pp: 3880–3886

Evolution of conically diffracted Gaussian beams in free space

Stephen D. Grant and Amin Abdolvand  »View Author Affiliations

Optics Express, Vol. 22, Issue 4, pp. 3880-3886 (2014)

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We present results of our observations on the free space evolution of conically diffracted beams from both single and cascade systems using various combinations of four biaxial crystals of the monoclinic double tungstate family [KGd(WO4)2]. Longitudinal shifts and radii of the Hamilton-Lloyd pair of rings were measured. In each case, the symmetric - forward and backward - evolution of the beam in free space from its focal image plane was monitored and quantified. Theoretical ring plane patterns based on a recently presented theoretical model are also compared to experimental patterns and found to be in good agreement.

© 2014 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(260.1180) Physical optics : Crystal optics
(260.1440) Physical optics : Birefringence

ToC Category:
Optical Technologies

Original Manuscript: December 20, 2013
Revised Manuscript: February 4, 2014
Manuscript Accepted: February 4, 2014
Published: February 12, 2014

Virtual Issues
2013 Advanced Solid State Lasers (2013) Optics Express

Stephen D. Grant and Amin Abdolvand, "Evolution of conically diffracted Gaussian beams in free space," Opt. Express 22, 3880-3886 (2014)

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