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Applied Optics

Applied Optics


  • Vol. 45, Iss. 1 — Jan. 1, 2006
  • pp: 144–150

Extended focus diffractive optical element for Gaussian laser beams

Michael A. Golub, Valery Shurman, and Israel Grossinger  »View Author Affiliations

Applied Optics, Vol. 45, Issue 1, pp. 144-150 (2006)

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The depth of focus of the Gaussian beam is extended by introducing a wavefront phase correction with properly designed diffractive optical elements. Results of the computer simulations show that, compared with other methods, the presented method demonstrates a reduced focal spot size and low sidelobes in a focal domain, within a considerable range of defocusing distances. Experimental results for the visible range diffractive optical element with a focus of 40 mm and a depth of focus that extends to 1 mm agree with the theory.

© 2006 Optical Society of America

OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(090.1760) Holography : Computer holography
(090.1970) Holography : Diffractive optics
(140.3300) Lasers and laser optics : Laser beam shaping

Michael A. Golub, Valery Shurman, and Israel Grossinger, "Extended focus diffractive optical element for Gaussian laser beams," Appl. Opt. 45, 144-150 (2006)

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