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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 9 — May. 3, 2004
  • pp: 1959–1965

Numerical simulation of an optical resonator for generation of a doughnut-like laser beam

Masamori Endo  »View Author Affiliations

Optics Express, Vol. 12, Issue 9, pp. 1959-1965 (2004)

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A design of an optical resonator for generation of a doughnutlike laser beam in the far field is proposed. The resonator consists of a toric mirror, a flat output coupler, and a w-axicon with a movable center axicon. Two-dimensional vector electric field simulation has shown that any one of the Laguerre–Gaussian modes can be selected by sliding the center axicon. Therefore this resonator is capable of generating doughnut-like laser beams, whose dark spot size can be controlled in real time. This feature of the proposed resonator is advantageous for atom trapping and optical tweezers.

© 2004 Optical Society of America

OCIS Codes
(140.4780) Lasers and laser optics : Optical resonators
(140.7010) Lasers and laser optics : Laser trapping

ToC Category:
Research Papers

Original Manuscript: March 1, 2004
Revised Manuscript: April 2, 2004
Published: May 3, 2004

Masamori Endo, "Numerical simulation of an optical resonator for generation of a doughnut-like laser beam," Opt. Express 12, 1959-1965 (2004)

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