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Proceedings Article

Characterization of elliptic dark hollow beams

[+] Author Affiliations
Julio C. Gutiérrez-Vega

Tecnológico de Monterrey (Mexico)

Proc. SPIE 7062, Laser Beam Shaping IX, 706207 (September 12, 2008); doi:10.1117/12.796214
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From Conference Volume 7062

  • Laser Beam Shaping IX
  • Andrew Forbes; Todd E. Lizotte
  • San Diego, California, USA | August 10, 2008

abstract

A dark hollow beam (DHB) is designed in general as a ringed shaped light beam with a null intensity center on the beam axis. DHBs have interesting physical properties such as a helical wavefront, a center vortex singularity, doughnut-shaped transverse intensity distribution, they may carry and transfer orbital and spin angular momentum, and may also exhibit a nondiffracting behavior upon propagation. Most of the known theoretical models to describe DHBs consider axially symmetric transverse intensity distributions. However, in recent years there has been an increasing interest in developing models to describe DHBs with elliptic symmetry. DHBs with elliptic symmetry can be regarded as transition beams between circular and rectangular DHBs. For example, the high-order modes emitted from resonators with neither completely rectangular nor completely circular symmetry, but in between them, cannot be described by the known HermiteGaussian or LaguerreGaussian beams. In this work, we review the current state of research on elliptic DHBs, with particular emphasis in Mathieu and Ince-Gauss beams.

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Julio C. Gutiérrez-Vega
"Characterization of elliptic dark hollow beams", Proc. SPIE 7062, Laser Beam Shaping IX, 706207 (September 12, 2008); doi:10.1117/12.796214; http://dx.doi.org/10.1117/12.796214


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